Also See...

You should also check out my non-technology blog at:

http://www.bobsbasement.net/

Creating an HTML Application to Convert Text Files to Audio Files

I'd like to take a brief departure from my normal collage of web-related and server-management examples and share a rather eclectic code sample.

Here's the scenario: I am presently working on another college degree, and I was recently taking a class which required a great deal of reading.  These assignments were all in digital form: I was using PDF or Kindle-based versions of the textbooks, and the remaining reading consisted of online articles. However, I am also an avid bicyclist, and the voluminous amount of reading was preventing me from going on some of my normal weekly rides. This gave me an idea: if I could convert the digital text to audio, I could bring my assignments with me on my longer rides and have my MP3 player read my assignments to me as I pedaled my way around the Arizona deserts.

I had experimented with Microsoft's built-in text-to-speech features some years ago, so I thought that this would be the perfect opportunity to revisit some of those APIs and write a full application to do the conversions for me. That being said, I could have written this application by using C# (which is my preferred language), but I decided to create an HTML Application for two reasons: 1) it is easier for me to share HTMLA applications in a blog, and 2) I keep this application in my OneDrive, so it's easier for me to modify the source code on systems where I don't have Visual Studio installed.

With that in mind, here is the resulting script which will convert a Text File to a Wave (*.WAV) File.

Using the HTML Application

As with most of my HTML Applications, the user interface is pretty simple to use; when you double click the HTA file, it will present you with the following user interface:

Clicking the Browse button will obviously allow you to browse to a text file, clicking the Close button will close the application, and clicking the Write File button will create a Wave file that is in the same path as the source text file. For example, if you have a text file at "C:\Text\Test.txt", the script will create a Wave file at "C:\Text\Test.txt.wav".

That being said, there are a few options which you can set:

  • Depending on your version of Windows and which languages you have installed, you will be presented with a list of available voices in the first drop-down menu; the following example is from a Windows 8 computer:
  • The second drop-down menu allows you to vary the playback speed; sometimes I prefer the playback speed to be slighter faster than normal:
  • The third drop-down menu allows you to alter the volume of the resulting Wave file:

Note: You can modify the script to alter the values that are used in the playback speed and volume drop-down menus, but the list of voices is obtained dynamically from your operating system.

Creating the HTML Application

To create this HTML Application, save the following HTMLA code as "Text to Wave File.hta" to your computer, and then double-click its icon to run the application. (Note that in a few places I added code comments which contain the MSDN URL for the APIs that I am using for this sample.)

<html>
<head>
<title>Text-to-Speech Writer</title>
<HTA:APPLICATION
  APPLICATIONNAME="Text-to-Speech Writer"
  ID="TextToSpeech"
  VERSION="1.0"
  BORDER="dialog"
  BORDERSTYLE="static"
  INNERBORDER="no"
  CAPTION="yes"
  SYSMENU="no"
  MAXIMIZEBUTTON="no"
  MINIMIZEBUTTON="no"
  SCROLL="no"
  SCROLLFLAT="yes"
  SINGLEINSTANCE="yes"
  CONTEXTMENU="no"
  SELECTION="no"/>
</head>

<script language="VBScript">

Option Explicit

Dim blnCancelBubble

' ----------------------------------------
' 
' OnLoad event handler for the application.
' 
' ----------------------------------------

Sub Window_OnLoad
  blnCancelBubble = False
  ' Set up the UI dimensions.
  Const intDialogWidth = 550
  Const intDialogHeight = 125
  ' Specify the window position and size.
  Self.resizeTo intDialogWidth,intDialogHeight
  Self.moveTo (Screen.AvailWidth - intDialogWidth) / 2,_
    (Screen.AvailHeight - intDialogHeight) / 2
  ' Load the list of text-to-speech voices into the drop-down menu.
  ' See the notes in WriteFile() for more information.
  Dim objSAPI, objVoice, objSelect, objOption
  Set objSAPI = CreateObject("SAPI.SpVoice")
  For Each objVoice In objSAPI.GetVoices("","")
    Set objSelect = Document.getElementById("optVoices")
    Set objOption = Document.createElement("option")
    objOption.text = objVoice.GetDescription() 
    objSelect.Add objOption
  Next
End Sub

' ----------------------------------------
' 
' Click handler for the Write button.
' 
' ----------------------------------------

Sub btnWrite_OnClick()
  ' Test for a file name.
  If Len(txtFile.Value) > 0 Then
    ' Test if we need to cancel bubbling of events.
    If blnCancelBubble = False Then
        ' Write the input file.
        Call WriteFile(txtFile.Value)
      End If
    End If
    ' Specify whether to bubble events.
    blnCancelBubble = IIf(blnCancelBubble=True,False,True)
End Sub

' ----------------------------------------
' 
' Change handler for the input box.
' 
' ----------------------------------------

Sub txtFile_OnChange()
  ' Enable the Write button.
  btnWrite.Disabled = False
  ' Enable event bubbling.
  blnCancelBubble = False
End Sub

' ----------------------------------------
' 
' Click handler for the Close button.
' 
' ----------------------------------------

Sub btnClose_OnClick()
  ' Test if we need to cancel bubbling of events.
  If blnCancelBubble = False Then
    ' Prompt the user to exit.
    If MsgBox("Are you sure you wish to exit?", _
      vbYesNo+vbDefaultButton2+vbQuestion+vbSystemModal, _
      TextToSpeech.applicationName)=vbYes Then
      ' Enable event bubbling.
      blnCancelBubble = True
      ' Close the application.
      Window.close
    End If
  End If
  ' Specify whether to bubble events.
     blnCancelBubble = IIf(blnCancelBubble=True,False,True)
End Sub

' ----------------------------------------
' 
' This is an ultra-lame workaround for the lack
' of a DoEvents() feature in HTA applications.
' 
' ----------------------------------------

Sub DoEvents()
  On Error Resume Next
  ' Create a shell object.
  Dim objShell : Set objShell = CreateObject("Wscript.Shell")
  ' Call out to the shell and essentially do nothing.
  objShell.Run "ver", 0, True
End Sub

' ----------------------------------------
' 
' This is an ultra-lame workaround for the lack
' of an IIf() function in vbscript applications.
' 
' ----------------------------------------

Function IIf(tx,ty,tz)
  If (tx) Then IIf = ty Else IIf = tz
End Function

' ----------------------------------------
' 
' Main text-to-speech function
' 
' ----------------------------------------

Sub WriteFile(strInputFileName)
  On Error Resume Next
  Dim objFSO
  Dim objFile
  Dim objSAPI
  Dim objFileStream
  Dim strOldTitle
  Dim strOutputFilename
  Const strProcessing = "Creating WAV file... "
  
  ' Define the audio format as 44.1kHz / 16-bit audio.
  ' See http://msdn.microsoft.com/en-us/library/ms720595.aspx
  Const SAFT44kHz16BitStereo = 35
  ' Allow text to be read as well as written.
  ' See http://msdn.microsoft.com/en-us/library/ms720858.aspx
  Const SSFMCreateForWrite = 3
  
  ' Define the output WAV filename.
  strOutputFilename = strInputFileName & ".wav"

  ' Create a file system object and open the input file.
  Set objFSO = CreateObject("Scripting.FileSystemObject")
  Set objFile = objFSO.OpenTextFile(strInputFileName, 1)
  
  ' Disable the form fields.
  optVoices.Disabled = True
  optRate.Disabled = True
  optVolume.Disabled = True
  txtFile.Disabled = True
  btnWrite.Disabled = True
  btnClose.Value = "Cancel"

  ' Test for an error.
  If Err.Number <> 0 Then
      MsgBox "Error: " & Err.Number & vbCrLf & Err.Description
  Else
    ' Store the original dialog title.
    strOldTitle = Document.title
    ' Display a status message.
    Document.title = strProcessing & Time()
    ' Pause briefly to let the screen refresh and capture events.
    Call DoEvents()
    ' Create a text-to-speech object.
    ' See http://msdn.microsoft.com/en-us/library/ms720149.aspx
    Set objSAPI = CreateObject("SAPI.SpVoice")
    ' Create a SAPI file stream object.
    ' See http://msdn.microsoft.com/en-us/library/ms722561.aspx
    Set objFileStream = CreateObject("SAPI.SpFileStream")
    ' Specify the stream format.
    ' See http://msdn.microsoft.com/en-us/library/ms720998.aspx
    objFileStream.Format.Type = SAFT44kHz16BitStereo
    ' Open the output file stream.
    objFileStream.Open strOutputFilename, SSFMCreateForWrite
    ' Specify the output file stream.
    ' See http://msdn.microsoft.com/en-us/library/ms723597.aspx
    Set objSAPI.AudioOutputStream = objFileStream
    
    ' Specify the speaking rate.
    ' See http://msdn.microsoft.com/en-us/library/ms723606.aspx
    objSAPI.Rate = optRate.Options(optRate.SelectedIndex).Value
    ' Specify the speaking volume.
    ' See http://msdn.microsoft.com/en-us/library/ms723615.aspx
    objSAPI.Volume = optVolume.Options(optVolume.SelectedIndex).Value
    ' Specify the voice to use.
    ' See http://msdn.microsoft.com/en-us/library/ms723601.aspx
    ' See http://msdn.microsoft.com/en-us/library/ms723614.aspx
    Set objSAPI.Voice = objSAPI.GetVoices("","").Item(optVoices.SelectedIndex)
    
    ' Loop through the lines in the input file.
    Do While Not objFile.AtEndOfStream
      ' Test if we need to cancel bubbling of events.
      If blnCancelBubble = True Then
        Exit Do
      Else
        ' Display a status message.
        Document.title = strProcessing & Time()
        ' Pause briefly to let the screen refresh and capture events.
        Call DoEvents()
        ' Speak one line from the input file.
        ' See http://msdn.microsoft.com/en-us/library/ms723609.aspx
        objSAPI.Speak objFile.ReadLine
      End If
    Loop
    ' Close the output file stream.
    objFileStream.Close
  End If

  ' Close the input file.
  objFile.Close

  ' Destroy all objects.
  Set objFileStream = Nothing
  Set objSAPI = Nothing
  Set objFile = Nothing
  Set objFSO = Nothing
  
  ' Reset the original dialog title.
  Document.title = strOldTitle

  ' Notify the user that the file has been written.
  MsgBox "Finished!", vbInformation, strOldTitle
  
  ' Re-enable the form fields.
  btnClose.Value = "Close"
  optVoices.Disabled = False
  optRate.Disabled = False
  optVolume.Disabled = False
  txtFile.Disabled = False
  btnWrite.Disabled = False

End Sub

</script>

<body bgcolor="white" id="HtmlBody">
<div id="FormControls">
  <table>
    <tr>
      <td align="left">
        <input type="file"
        style="width:250px;height:22px"
        name="txtFile"
        id="txtFile"
        onchange="txtFile_OnChange">
      </td>
      <td align="left">
        <input type="button"
        style="width:125px;height:22px"
        name="btnWrite"
        id="btnWrite"
        value="Write File"
        disabled
        onclick="btnWrite_OnClick">
      </td>
      <td align="right">
        <input type="button"
        style="width:125px;height:22px"
        name="btnClose"
        id="btnClose"
        value="Close"
        onclick="btnClose_OnClick">
      </td>
    </tr>
    <tr>
      <td align="left">
        <select name="optVoices"
          style="width:250px;height:22px">
        </select>
      </td>
      <td align="left">
        <select name="optRate"
          style="width:125px;height:22px">
          <option value="-2">Slowest</option>
          <option value="-1">Slower</option>
          <option value="0" selected>Normal Speed</option>
          <option value="1">Faster</option>
          <option value="2">Fastest</option>
        </select>
      </td>
      <td align="right">
        <select name="optVolume"
          style="width:125px;height:22px">
          <option value="25">25% Volume</option>
          <option value="50">50% Volume</option>
          <option value="75">75% Volume</option>
          <option value="100" selected>Full Volume</option>
        </select>
      </td>
    </tr>
  </table>
</div>
</body>
</html>

Note that I intentionally chose to have this HTML Application convert the text to audio one line at a time; this slows the down the conversion process, but it allows the conversion to be cancelled if necessary. (My original version of this script would convert an entire text file at one time; since there was no way to cancel the operation, the script appeared to hang when converting larger text files.)

Additional Notes

Once you have created a Wave (*.WAV) file, you can optionally convert it to an MP3 file for use in an MP3 player or mobile phone. (Most devices should playback Wave files, but MP3 files are considerably smaller and more portable.) There are a variety of Wave-to-MP3 converters out there, but I prefer to use the LAME encoder, which is an open-source code project that is available on SourceForge. Once you have the LAME encoder project compiled, (or you have located and downloaded a pre-compiled version), you can use LAME.EXE from a command prompt to convert your Wave files into MP3 files.

That being said, I prefer to automate as much as possible, so I have written a batch file which converts all of the Wave files in a directory to MP3 files and renames the source Wave files with a "*.old" filename extension:

@echo off

for /f "usebackq delims=|" %%a in (`dir /b *.wav`) do (
  for %%b in (^"%%a^") do (
    if not exist "%%~db%%~pb%%~nb.mp3" (
      lame.exe -b 128 -m j "%%a" "%%~nb.mp3"
    )
    if exist "%%~db%%~pb%%~nb.mp3" (
      move "%%a" "%%a.old"
    )
  )
)

Note that the above batch file was written for text-to-speech use, and as such it defines a bit rate of 128kbps, which would be pretty low for music files. If you want to repurpose this batch file for higher bitrates, modify the value of the "-b" parameter for the LAME.EXE command.

That wraps it up for today's post.

Note: This blog was originally posted at http://blogs.msdn.com/robert_mcmurray/

Posted: May 27 2015, 08:18 by Bob | Comments (0) RSS comment feed |
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Updating my HTML Application for Configuring your WebDAV Redirector Settings

A couple of years ago I wrote a blog that was titled "How to create an HTML Application to configure your WebDAV Redirector settings", where I showed how to use HTMLA to create a simple editor for most of the WebDAV Redirector settings. These settings have no other user interface, so prior to my blog post users had to manually edit the registry in order to modify their WebDAV Redirector settings.

Click image to expand

In the past two years since I wrote that blog, I have found myself using that simple application so often that I now keep it in my personal utilities folder on my SkyDrive so I can have it with me no matter where I am travelling. But that being said, I ran into an interesting situation the other day that made me want to update the application, so I thought that it was time to write a new blog with the updated changes.

Here's what happened - I had opened my application for modifying my WebDAV Redirector settings, but then something happened which distracted me, and then I headed off to lunch before I committed my changes to the registry. When I came back to my office, I noticed that my WebDAV Redirector settings application was still open and I clicked the Exit Application button. The application popped up a dialog which informed me that I had changes that hadn't been saved to the registry, but I forgot what they were. This put me in a quandary - I could simply click Yes and hope for the best, or I could click No and lose whatever changes that I had made and re-open the application to start over.

It was at that time that I thought to myself, "If only I had a Reset Values button..."

By now you can probably see where this blog is going, and here's what the new application looks like - it's pretty much the same as the last application, with the additional button that allows you to reset your values without exiting the application. (Note - the application will prompt you for confirmation if you attempt to reset the values and you have unsaved changes.)

Click image to expand

Creating the Updated HTML Application

To create this HTML Application, you need to use the same steps as my last blog: save the following HTMLA code as "WebDAV Redirector Settings.hta" to your computer, and then double-click its icon to run the application.

<html>

<head>
<title>WebDAV Redirector Settings</title>
<HTA:APPLICATION
  APPLICATIONNAME="WebDAV Redirector Settings"
  ID="WebDAV Redirector Settings"
  VERSION="1.0"
  BORDER="dialog"
  BORDERSTYLE="static"
  INNERBORDER="no"
  SYSMENU="no"
  MAXIMIZEBUTTON="no"
  MINIMIZEBUTTON="no"
  SCROLL="no"
  SCROLLFLAT="yes"
  SINGLEINSTANCE="yes"
  CONTEXTMENU="no"
  SELECTION="no"/>

<script language="vbscript">

' ----------------------------------------
' Start of main code section.
' ----------------------------------------

Option Explicit

Const intDialogWidth = 700
Const intDialogHeight = 620
Const HKEY_LOCAL_MACHINE = &H80000002
Const strWebClientKeyPath = "SYSTEM\CurrentControlSet\Services\WebClient\Parameters"
Const strLuaKeyPath = "Software\Microsoft\Windows\CurrentVersion\Policies\System"
Dim objRegistry
Dim blnHasChanges

' ----------------------------------------
' Start the application.
' ----------------------------------------

Sub Window_OnLoad
  On Error Resume Next
  ' Set up the UI dimensions.
  Self.resizeTo intDialogWidth,intDialogHeight
  Self.moveTo (Screen.AvailWidth - intDialogWidth) / 2, _
    (Screen.AvailHeight - intDialogHeight) / 2
  ' Retrieve the current settings.
  Document.all.TheBody.ClassName = "hide"
  Set objRegistry = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")
  Call CheckForLUA()
  Call GetValues()
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Check for User Access Control
' ----------------------------------------

Sub CheckForLUA()
  If GetRegistryDWORD(strLuaKeyPath,"EnableLUA",1)<> 0 Then
    MsgBox "User Access Control (UAC) is enabled on this computer." & _
      vbCrLf & vbCrLf & "UAC must be disabled in order to edit " & _
      "the registry and restart the service for the WebDAV Redirector. " & _
      "Please disable UAC before running this application again. " & _
      "This application will now exit.", _
      vbCritical, "User Access Control"
    Self.close
  End If 
End Sub

' ----------------------------------------
' Exit the application.
' ----------------------------------------

Sub ExitApplication()
  If blnHasChanges = False Then
    If MsgBox("Are you sure you want to exit?", _
      vbQuestion Or vbYesNo Or vbDefaultButton2, _
      "Exit Application") = vbNo Then
      Exit Sub
    End If
  Else
    Dim intRetVal
    intRetVal = MsgBox("You have unsaved changes. " & _
      "Do you want to save them before you exit?", _
      vbQuestion Or vbYesNoCancel Or vbDefaultButton1, _
      "Reset Application")
    If intRetVal = vbYes Then
      Call SetValues()
    ElseIf intRetVal = vbCancel Then
      Exit Sub
    End If
  End If
  Self.close
End Sub

' ----------------------------------------
' Reset the application.
' ----------------------------------------

Sub ResetApplication()
  If blnHasChanges = True Then
    Dim intRetVal
    intRetVal = MsgBox("You have unsaved changes. " & _
      "Do you want to save them before you reset the values?", _
      vbQuestion Or vbYesNoCancel Or vbDefaultButton1, _
      "Reset Application")
    If intRetVal = vbYes Then
      Call SetValues()
    ElseIf intRetVal = vbCancel Then
      Exit Sub
    End If
  End If
  Call GetValues()
End Sub

' ----------------------------------------
' Flag the application as having changes.
' ----------------------------------------

Sub FlagChanges()
  blnHasChanges = True
End Sub

' ----------------------------------------
' Retrieve the settings from the registry.
' ----------------------------------------

Sub GetValues()
  On Error Resume Next
  Dim tmpCount,tmpArray,tmpString
  ' Get the radio button values
  Call SetRadioValue(Document.all.BasicAuthLevel, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "BasicAuthLevel",1))
  Call SetRadioValue(Document.all.SupportLocking, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SupportLocking",1))
  ' Get the text box values
  Document.all.InternetServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "InternetServerTimeoutInSec",30)
  Document.all.FileAttributesLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileAttributesLimitInBytes",1000000)
  Document.all.FileSizeLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileSizeLimitInBytes",50000000)
  Document.all.LocalServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "LocalServerTimeoutInSec",15)
  Document.all.SendReceiveTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SendReceiveTimeoutInSec",60)
  Document.all.ServerNotFoundCacheLifeTimeInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec",60)
  ' Get the text area values
  tmpArray = GetRegistryMULTISZ( _
    strWebClientKeyPath,"AuthForwardServerList")
  For tmpCount = 0 To UBound(tmpArray)
    tmpString = tmpString & tmpArray(tmpCount) & vbTab
  Next
  If Len(tmpString)>0 Then
    Document.all.AuthForwardServerList.Value = _
      Replace(Left(tmpString,Len(tmpString)-1),vbTab,vbCrLf)
  End If
  blnHasChanges = False
End Sub

' ----------------------------------------
' Save the settings in the registry.
' ----------------------------------------

Sub SetValues()
  On Error Resume Next
  ' Set the radio button values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "BasicAuthLevel", _
    GetRadioValue(Document.all.BasicAuthLevel))
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SupportLocking", _
    GetRadioValue(Document.all.SupportLocking))
  ' Set the text box values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "InternetServerTimeoutInSec", _
    Document.all.InternetServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileAttributesLimitInBytes", _
    Document.all.FileAttributesLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileSizeLimitInBytes", _
    Document.all.FileSizeLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "LocalServerTimeoutInSec", _
    Document.all.LocalServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SendReceiveTimeoutInSec", _
    Document.all.SendReceiveTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec", _
    Document.all.ServerNotFoundCacheLifeTimeInSec.Value)
  ' Set the text area values
  Call SetRegistryMULTISZ( _
    strWebClientKeyPath, _
    "AuthForwardServerList", _
    Split(Document.all.AuthForwardServerList.Value,vbCrLf))
  ' Prompt to restart the WebClient service
  If MsgBox("Do you want to restart the WebDAV Redirector " & _
    "service so your settings will take effect?", _
    vbQuestion Or vbYesNo Or vbDefaultButton2, _
    "Restart WebDAV Redirector") = vbYes Then
    ' Restart the WebClient service.
    Call RestartWebClient()
  End If
  Call GetValues()
End Sub

' ----------------------------------------
' Start the WebClient service.
' ----------------------------------------

Sub RestartWebClient()
  On Error Resume Next
  Dim objWMIService,colServices,objService
  Document.All.TheBody.ClassName = "hide"
  Set objWMIService = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
  Set colServices = objWMIService.ExecQuery( _
    "Select * from Win32_Service Where Name='WebClient'")
  For Each objService in colServices
    objService.StopService()
    objService.StartService()
  Next
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Retrieve a DWORD value from the registry.
' ----------------------------------------

Function GetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDefaultValue)
  On Error Resume Next
  Dim tmpDwordValue
  If objRegistry.GetDWORDValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpDwordValue)=0 Then
    GetRegistryDWORD = CLng(tmpDwordValue)
  Else
    GetRegistryDWORD = CLng(tmpDefaultValue)
  End If
End Function

' ----------------------------------------
' Set a DWORD value in the registry.
' ----------------------------------------

Sub SetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDwordValue)
  On Error Resume Next
  Call objRegistry.SetDWORDValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    CLng(tmpDwordValue))
End Sub

' ----------------------------------------
' Retrieve a MULTISZ value from the registry.
' ----------------------------------------

Function GetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName)
  On Error Resume Next
  Dim tmpMultiSzValue
  If objRegistry.GetMultiStringValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpMultiSzValue)=0 Then
    GetRegistryMULTISZ = tmpMultiSzValue
  Else
    GetRegistryMULTISZ = Array()
  End If
End Function

' ----------------------------------------
' Set a MULTISZ value in the registry.
' ----------------------------------------

Sub SetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpMultiSzValue)
  On Error Resume Next
  Call objRegistry.SetMultiStringValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    tmpMultiSzValue)
End Sub

' ----------------------------------------
' Retrieve the value of a radio button group.
' ----------------------------------------

Function GetRadioValue(ByVal tmpRadio)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If tmpRadio(tmpCount).Checked Then
      GetRadioValue = CLng(tmpRadio(tmpCount).Value)
      Exit For
    End If
  Next
End Function

' ----------------------------------------
' Set the value for a radio button group.
' ----------------------------------------

Sub SetRadioValue(ByVal tmpRadio, ByVal tmpValue)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If CLng(tmpRadio(tmpCount).Value) = CLng(tmpValue) Then
      tmpRadio(tmpCount).Checked = True
      Exit For
    End If
  Next
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub Validate(tmpField)
  Dim tmpRegEx, tmpMatches
  Set tmpRegEx = New RegExp
  tmpRegEx.Pattern = "[0-9]"
  tmpRegEx.IgnoreCase = True
  tmpRegEx.Global = True
  Set tmpMatches = tmpRegEx.Execute(tmpField.Value)
  If tmpMatches.Count = Len(CStr(tmpField.Value)) Then
    If CDbl(tmpField.Value) => 0 And _
      CDbl(tmpField.Value) =< 4294967295 Then
      Exit Sub
    End If
  End If
  MsgBox "Please enter a whole number between 0 and 4294967295.", _
    vbCritical, "Validation Error"
  tmpField.Focus
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub BasicAuthWarning()
  MsgBox "WARNING:" & vbCrLf  & vbCrLf & _
    "Using Basic Authentication over non-SSL connections can cause " & _
    "serious security issues. Usernames and passwords are transmitted " & _
    "in clear text, therefore the use of Basic Authentication with " & _
    "WebDAV is disabled by default for non-SSL connections. That " & _
    "being said, this setting can override the default behavior for " & _
    "Basic Authentication, but it is strongly discouraged.", _
    vbCritical, "Basic Authentication Warning"
End Sub

' ----------------------------------------
' End of main code section.
' ----------------------------------------

</script>
<style>
body { color:#000000; background-color:#cccccc;
  font-family:'Segoe UI',Tahoma,Verdana,Arial; font-size:9pt; }
fieldset { padding:10px; width:640px; }
.button { width:150px; }
.textbox { width:200px; height:22px; text-align:right; }
.textarea { width:300px; height:50px; text-align:left; }
.radio { margin-left:-5px; margin-top: -2px; }
.hide { display:none; }
.show { display:block; }
select { width:300px; text-align:left; }
table { border-collapse:collapse; empty-cells:hide; }
h1 { font-size:14pt; }
th { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
td { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
big { font-size:11pt; }
small { font-size:8pt; }
</style>
</head>

<body id="TheBody" class="hide">

<h1 align="center" id="TheTitle" style="margin-bottom:-20px;">WebDAV Redirector Settings</h1>
<div align="center">
<p style="margin-bottom:-20px;"><i><small><b>Note</b>: See <a target="_blank" href="http://go.microsoft.com/fwlink/?LinkId=324291">Using the WebDAV Redirector</a> for additional details.</small></i></p>
  <form>
    <center>
    <table border="0" cellpadding="2" cellspacing="2" style="width:600px;">
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Security Settings">
        <legend>&nbsp;<b>Security Settings</b>&nbsp;</legend>
        These values affect the security behavior for the WebDAV Redirector.<br>
        <table style="width:600px;">
          <tr title="Specifies whether the WebDAV Redirector can use Basic Authentication to communicate with a server.">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Basic Authentication Level</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Using basic authentication can cause <u>serious security issues</u> as the username and password are transmitted in clear text, therefore the use of basic authentication over WebDAV is disabled by default unless the connection is using SSL.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel0"></td>
                <td style="width:280px"><label for="BasicAuthLevel0">Basic Authentication is disabled</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel1"></td>
                <td style="width:280px"><label for="BasicAuthLevel1">Basic Authentication is enabled for SSL web sites only</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="2" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel2" onClick="VBScript:BasicAuthWarning()"></td>
                <td style="width:280px"><label for="BasicAuthLevel2">Basic Authentication is enabled for SSL and non-SSL web sites</label></td>
              </tr>
            </table>
            </td>
          </tr>
          <tr title="Specifies a list of local URLs for forwarding credentials that bypasses any proxy settings. (Note: This requires Windows Vista SP1 or later.)">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Authentication Forwarding Server List</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Include one server name per line.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px"><textarea class="textarea" name="AuthForwardServerList" onchange="VBScript:FlagChanges()"></textarea></td>
          </tr>
          <tr title="Specifies whether the WebDAV Redirector supports locking.">
            <td style="width:300px"><b>Support for WebDAV Locking</b></td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking1"></td>
                <td style="width:280px"><label for="SupportLocking1">Enable Lock Support</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking0"></td>
                <td style="width:280px"><label for="SupportLocking0">Disable Lock Support</label></td>
              </tr>
            </table>
            </td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Time-outs">
        <legend>&nbsp;<b>Time-outs and Maximum Sizes</b>&nbsp;</legend>
        These values affect the behavior for WebDAV Client/Server operations.<br>
        <table border="0" style="width:600px;">
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with non-local WebDAV servers.">
            <td style="width:300px"><b>Internet Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="InternetServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="30"></td>
          </tr>
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with a local WebDAV server.">
            <td style="width:300px"><b>Local Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="LocalServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="15"></td>
          </tr>
          <tr title="Specifies the time-out in seconds that the WebDAV Redirector uses after issuing a request.">
            <td style="width:300px"><b>Send/Receive Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="SendReceiveTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the period of time that a server is cached as non-WebDAV by the WebDAV Redirector. If a server is found in this list, a fail is returned immediately without attempting to contact the server.">
            <td style="width:300px"><b>Server Not Found Cache Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="ServerNotFoundCacheLifeTimeInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the maximum size in bytes that the WebDAV Redirector allows for file transfers.">
            <td style="width:300px"><b>Maximum File Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileSizeLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="50000000"></td>
          </tr>
          <tr title="Specifies the maximum size that is allowed by the WebDAV Redirector for all properties on a specific collection.">
            <td style="width:300px"><b>Maximum Attributes Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileAttributesLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="1000000"></td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="text-align:center">
        <table border="0">
          <tr>
            <td style="text-align:center"><input class="button" type="button" value="Apply Settings" onclick="VBScript:SetValues()">
            <td style="text-align:center"><input class="button" type="button" value="Reset Values" onclick="VBScript:ResetApplication()">
            <td style="text-align:center"><input class="button" type="button" value="Exit Application" onclick="VBScript:ExitApplication()">
          </tr>
        </table>
        </td>
      </tr>
    </table>
    </center>
  </form>
</div>

</body>

</html>
Additional Notes

As with the last version of this HTML Application, you will need to run this application as an administrator in order to save the settings to the registry and restart the WebDAV Redirector service.

Have fun! ;-]

Note: This blog was originally posted at http://blogs.msdn.com/robert_mcmurray/
Posted: Sep 20 2013, 16:21 by Bob | Comments (0) RSS comment feed |
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How to create an HTML Application to configure your WebDAV Redirector settings

I've mentioned in previous blog posts that I use the Windows WebDAV Redirector a lot. (And believe me, I use it a lot.) Having said that, there are a lot of registry settings that control how the Windows WebDAV Redirector operates, and I tend to tweak those settings fairly often.

I documented all of those registry settings in my Using the WebDAV Redirector walkthrough, but unfortunately there isn't a built-in interface for managing the settings. With that in mind, I decided to write my own user interface.

I knew that it would be pretty simple to create a basic Windows Form application that does everything, but my trouble is that I would want to share the code in a blog, and the steps create a Windows application are probably more than I would want to write in such a short space. So I decided to reach into my scripting past and create an HTML Application for Windows that configures all of the Windows WebDAV Redirector settings.

It should be noted, like everything else these days, that this code is provided as-is. ;-]

Using the HTML Application

When you run the application, it will present you with the following user interface, which allows you to configure most of the useful Windows WebDAV Redirector settings:

Creating the HTML Application

To create this HTML Application, save the following HTMLA code as "WebDAV Redirector Settings.hta" to your computer, and then double-click its icon to run the application.

<html>

<head>
<title>WebDAV Redirector Settings</title>
<HTA:APPLICATION
  APPLICATIONNAME="WebDAV Redirector Settings"
  ID="WebDAV Redirector Settings"
  VERSION="1.0"
  BORDER="dialog"
  BORDERSTYLE="static"
  INNERBORDER="no"
  SYSMENU="no"
  MAXIMIZEBUTTON="no"
  MINIMIZEBUTTON="no"
  SCROLL="no"
  SCROLLFLAT="yes"
  SINGLEINSTANCE="yes"
  CONTEXTMENU="no"
  SELECTION="no"/>

<script language="vbscript">
' ----------------------------------------
' Start of main code section.
' ----------------------------------------

Option Explicit

Const intDialogWidth = 700
Const intDialogHeight = 620
Const HKEY_LOCAL_MACHINE = &H80000002
Const strWebClientKeyPath = "SYSTEM\CurrentControlSet\Services\WebClient\Parameters"
Const strLuaKeyPath = "Software\Microsoft\Windows\CurrentVersion\Policies\System"
Dim objRegistry
Dim blnHasChanges

' ----------------------------------------
' Start the application.
' ----------------------------------------

Sub Window_OnLoad
  On Error Resume Next
  ' Set up the UI dimensions.
  Self.resizeTo intDialogWidth,intDialogHeight
  Self.moveTo (Screen.AvailWidth - intDialogWidth) / 2, _
    (Screen.AvailHeight - intDialogHeight) / 2
  ' Retrieve the current settings.
  Document.all.TheBody.ClassName = "hide"
  Set objRegistry = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")
  Call CheckForLUA()
  Call GetValues()
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Check for User Access Control
' ----------------------------------------

Sub CheckForLUA()
  If GetRegistryDWORD(strLuaKeyPath,"EnableLUA",1)<> 0 Then
    MsgBox "User Access Control (UAC) is enabled on this computer." & _
      vbCrLf & vbCrLf & "UAC must be disabled in order to edit " & _
      "the registry and restart the service for the WebDAV Redirector. " & _
      "Please disable UAC before running this application again. " & _
      "This application will now exit.", _
      vbCritical, "User Access Control"
    Self.close
  End If 
End Sub

' ----------------------------------------
' Exit the application.
' ----------------------------------------

Sub ExitApplication()
  If blnHasChanges = False Then
    If MsgBox("Are you sure you want to exit?", _
      vbQuestion Or vbYesNo Or vbDefaultButton2, _
      "Exit Application") = vbNo Then
      Exit Sub
    End If
  Else
    Dim intRetVal
    intRetVal = MsgBox("You have unsaved changes. " & _
      "Do you want to save them before you exit?", _
      vbQuestion Or vbYesNoCancel Or vbDefaultButton1, _
      "Exit Application")
    If intRetVal = vbYes Then
      Call SetValues()
    ElseIf intRetVal = vbCancel Then
      Exit Sub
    End If
  End If
  Self.close
End Sub

' ----------------------------------------
' Flag the application as having changes.
' ----------------------------------------

Sub FlagChanges()
  blnHasChanges = True
End Sub

' ----------------------------------------
' Retrieve the settings from the registry.
' ----------------------------------------

Sub GetValues()
  On Error Resume Next
  Dim tmpCount,tmpArray,tmpString
  ' Get the radio button values
  Call SetRadioValue(Document.all.BasicAuthLevel, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "BasicAuthLevel",1))
  Call SetRadioValue(Document.all.SupportLocking, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SupportLocking",1))
  ' Get the text box values
  Document.all.InternetServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "InternetServerTimeoutInSec",30)
  Document.all.FileAttributesLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileAttributesLimitInBytes",1000000)
  Document.all.FileSizeLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileSizeLimitInBytes",50000000)
  Document.all.LocalServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "LocalServerTimeoutInSec",15)
  Document.all.SendReceiveTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SendReceiveTimeoutInSec",60)
  Document.all.ServerNotFoundCacheLifeTimeInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec",60)
  ' Get the text area values
  tmpArray = GetRegistryMULTISZ( _
    strWebClientKeyPath,"AuthForwardServerList")
  For tmpCount = 0 To UBound(tmpArray)
    tmpString = tmpString & tmpArray(tmpCount) & vbTab
  Next
  If Len(tmpString)>0 Then
    Document.all.AuthForwardServerList.Value = _
      Replace(Left(tmpString,Len(tmpString)-1),vbTab,vbCrLf)
  End If
  blnHasChanges = False
End Sub

' ----------------------------------------
' Save the settings in the registry.
' ----------------------------------------

Sub SetValues()
  On Error Resume Next
  ' Set the radio button values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "BasicAuthLevel", _
    GetRadioValue(Document.all.BasicAuthLevel))
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SupportLocking", _
    GetRadioValue(Document.all.SupportLocking))
  ' Set the text box values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "InternetServerTimeoutInSec", _
    Document.all.InternetServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileAttributesLimitInBytes", _
    Document.all.FileAttributesLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileSizeLimitInBytes", _
    Document.all.FileSizeLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "LocalServerTimeoutInSec", _
    Document.all.LocalServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SendReceiveTimeoutInSec", _
    Document.all.SendReceiveTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec", _
    Document.all.ServerNotFoundCacheLifeTimeInSec.Value)
  ' Set the text area values
  Call SetRegistryMULTISZ( _
    strWebClientKeyPath, _
    "AuthForwardServerList", _
    Split(Document.all.AuthForwardServerList.Value,vbCrLf))
  ' Prompt to restart the WebClient service
  If MsgBox("Do you want to restart the WebDAV Redirector " & _
    "service so your settings will take effect?", _
    vbQuestion Or vbYesNo Or vbDefaultButton2, _
    "Restart WebDAV Redirector") = vbYes Then
    ' Restart the WebClient service.
    Call RestartWebClient()
  End If
  Call GetValues()
End Sub

' ----------------------------------------
' Start the WebClient service.
' ----------------------------------------

Sub RestartWebClient()
  On Error Resume Next
  Dim objWMIService,colServices,objService
  Document.All.TheBody.ClassName = "hide"
  Set objWMIService = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
  Set colServices = objWMIService.ExecQuery( _
    "Select * from Win32_Service Where Name='WebClient'")
  For Each objService in colServices
    objService.StopService()
    objService.StartService()
  Next
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Retrieve a DWORD value from the registry.
' ----------------------------------------

Function GetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDefaultValue)
  On Error Resume Next
  Dim tmpDwordValue
  If objRegistry.GetDWORDValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpDwordValue)=0 Then
    GetRegistryDWORD = CLng(tmpDwordValue)
  Else
    GetRegistryDWORD = CLng(tmpDefaultValue)
  End If
End Function

' ----------------------------------------
' Set a DWORD value in the registry.
' ----------------------------------------

Sub SetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDwordValue)
  On Error Resume Next
  Call objRegistry.SetDWORDValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    CLng(tmpDwordValue))
End Sub

' ----------------------------------------
' Retrieve a MULTISZ value from the registry.
' ----------------------------------------

Function GetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName)
  On Error Resume Next
  Dim tmpMultiSzValue
  If objRegistry.GetMultiStringValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpMultiSzValue)=0 Then
    GetRegistryMULTISZ = tmpMultiSzValue
  Else
    GetRegistryMULTISZ = Array()
  End If
End Function

' ----------------------------------------
' Set a MULTISZ value in the registry.
' ----------------------------------------

Sub SetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpMultiSzValue)
  On Error Resume Next
  Call objRegistry.SetMultiStringValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    tmpMultiSzValue)
End Sub

' ----------------------------------------
' Retrieve the value of a radio button group.
' ----------------------------------------

Function GetRadioValue(ByVal tmpRadio)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If tmpRadio(tmpCount).Checked Then
      GetRadioValue = CLng(tmpRadio(tmpCount).Value)
      Exit For
    End If
  Next
End Function

' ----------------------------------------
' Set the value for a radio button group.
' ----------------------------------------

Sub SetRadioValue(ByVal tmpRadio, ByVal tmpValue)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If CLng(tmpRadio(tmpCount).Value) = CLng(tmpValue) Then
      tmpRadio(tmpCount).Checked = True
      Exit For
    End If
  Next
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub Validate(tmpField)
  Dim tmpRegEx, tmpMatches
  Set tmpRegEx = New RegExp
  tmpRegEx.Pattern = "[0-9]"
  tmpRegEx.IgnoreCase = True
  tmpRegEx.Global = True
  Set tmpMatches = tmpRegEx.Execute(tmpField.Value)
  If tmpMatches.Count = Len(CStr(tmpField.Value)) Then
    If CDbl(tmpField.Value) => 0 And _
      CDbl(tmpField.Value) =< 4294967295 Then
      Exit Sub
    End If
  End If
  MsgBox "Please enter a whole number between 0 and 4294967295.", _
    vbCritical, "Validation Error"
  tmpField.Focus
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub BasicAuthWarning()
  MsgBox "WARNING:" & vbCrLf  & vbCrLf & _
    "Using Basic Authentication over non-SSL connections can cause " & _
    "serious security issues. Usernames and passwords are transmitted " & _
    "in clear text, therefore the use of Basic Authentication with " & _
    "WebDAV is disabled by default for non-SSL connections. That " & _
    "being said, this setting can override the default behavior for " & _
    "Basic Authentication, but it is strongly discouraged.", _
    vbCritical, "Basic Authentication Warning"
End Sub

' ----------------------------------------
' End of main code section.
' ----------------------------------------

</script>
<style>
body { color:#000000; background-color:#cccccc;
  font-family:'Segoe UI',Tahoma,Verdana,Arial; font-size:9pt; }
fieldset { padding:10px; width:640px; }
.button { width:150px; }
.textbox { width:200px; height:22px; text-align:right; }
.textarea { width:300px; height:50px; text-align:left; }
.radio { margin-left:-5px; margin-top: -2px; }
.hide { display:none; }
.show { display:block; }
select { width:300px; text-align:left; }
table { border-collapse:collapse; empty-cells:hide; }
h1 { font-size:14pt; }
th { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
td { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
big { font-size:11pt; }
small { font-size:8pt; }
</style>
</head>

<body id="TheBody" class="hide">

<h1 align="center" id="TheTitle" style="margin-bottom:-20px;">WebDAV Redirector Settings</h1>
<div align="center">
<p style="margin-bottom:-20px;"><i><small><b>Note</b>: See <a target="_blank" href="http://learn.iis.net/page.aspx/386/using-the-webdav-redirector/">Using the WebDAV Redirector</a> for additional details.</small></i></p>
  <form>
    <center>
    <table border="0" cellpadding="2" cellspacing="2" style="width:600px;">
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Security Settings">
        <legend>&nbsp;<b>Security Settings</b>&nbsp;</legend>
        These values affect the security behavior for the WebDAV Redirector.<br>
        <table style="width:600px;">
          <tr title="Specifies whether the WebDAV Redirector can use Basic Authentication to communicate with a server.">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Basic Authentication Level</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Using basic authentication can cause <u>serious security issues</u> as the username and password are transmitted in clear text, therefore the use of basic authentication over WebDAV is disabled by default unless the connection is using SSL.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel0"></td>
                <td style="width:280px"><label for="BasicAuthLevel0">Basic Authentication is disabled</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel1"></td>
                <td style="width:280px"><label for="BasicAuthLevel1">Basic Authentication is enabled for SSL web sites only</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="2" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel2" onClick="VBScript:BasicAuthWarning()"></td>
                <td style="width:280px"><label for="BasicAuthLevel2">Basic Authentication is enabled for SSL and non-SSL web sites</label></td>
              </tr>
            </table>
            </td>
          </tr>
          <tr title="Specifies a list of local URLs for forwarding credentials that bypasses any proxy settings. (Note: This requires Windows Vista SP1 or later.)">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Authentication Forwarding Server List</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Include one server name per line.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px"><textarea class="textarea" name="AuthForwardServerList" onchange="VBScript:FlagChanges()"></textarea></td>
          </tr>
          <tr title="Specifies whether the WebDAV Redirector supports locking.">
            <td style="width:300px"><b>Support for WebDAV Locking</b></td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking1"></td>
                <td style="width:280px"><label for="SupportLocking1">Enable Lock Support</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking0"></td>
                <td style="width:280px"><label for="SupportLocking0">Disable Lock Support</label></td>
              </tr>
            </table>
            </td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Time-outs">
        <legend>&nbsp;<b>Time-outs and Maximum Sizes</b>&nbsp;</legend>
        These values affect the behavior for WebDAV Client/Server operations.<br>
        <table border="0" style="width:600px;">
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with non-local WebDAV servers.">
            <td style="width:300px"><b>Internet Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="InternetServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="30"></td>
          </tr>
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with a local WebDAV server.">
            <td style="width:300px"><b>Local Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="LocalServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="15"></td>
          </tr>
          <tr title="Specifies the time-out in seconds that the WebDAV Redirector uses after issuing a request.">
            <td style="width:300px"><b>Send/Receive Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="SendReceiveTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the period of time that a server is cached as non-WebDAV by the WebDAV Redirector. If a server is found in this list, a fail is returned immediately without attempting to contact the server.">
            <td style="width:300px"><b>Server Not Found Cache Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="ServerNotFoundCacheLifeTimeInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the maximum size in bytes that the WebDAV Redirector allows for file transfers.">
            <td style="width:300px"><b>Maximum File Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileSizeLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="50000000"></td>
          </tr>
          <tr title="Specifies the maximum size that is allowed by the WebDAV Redirector for all properties on a specific collection.">
            <td style="width:300px"><b>Maximum Attributes Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileAttributesLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="1000000"></td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="text-align:center">
        <table border="0">
          <tr>
            <td style="text-align:center"><input class="button" type="button" value="Apply Settings" onclick="VBScript:SetValues()">
            <td style="text-align:center"><input class="button" type="button" value="Exit Application" onclick="VBScript:ExitApplication()">
          </tr>
        </table>
        </td>
      </tr>
    </table>
    </center>
  </form>
</div>

</body>

</html>
Additional Notes

You will need to run this HTML Application as an administrator in order to save the settings and restart the Windows WebDAV Redirector. (Which is listed as the "WebClient" service in your Administrative Tools.)

This HTML Application performs basic validation for the numeric fields, and it prevents you from exiting the application when you have unsaved changes, but apart from that there's not much functionality other than setting and retrieving the registry values. How else can you get away with posting an application in a blog with only 500 lines of code and no compilation required? ;-]

Note: This blog was originally posted at http://blogs.msdn.com/robert_mcmurray/
Posted: Oct 07 2011, 09:00 by Bob | Comments (0) RSS comment feed |
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How to create an HTML Application to configure your WebDAV Redirector settings

I've mentioned in previous blog posts that I use the Windows WebDAV Redirector a lot. (And believe me, I use it a lot.) Having said that, there are a lot of registry settings that control how the Windows WebDAV Redirector operates, and I tend to tweak those settings fairly often.

I documented all of those registry settings in my Using the WebDAV Redirector walkthrough, but unfortunately there isn't a built-in interface for managing the settings. With that in mind, I decided to write my own user interface.

I knew that it would be pretty simple to create a basic Windows Form application that does everything, but my trouble is that I would want to share the code in a blog, and the steps create a Windows application are probably more than I would want to write in such a short space. So I decided to reach into my scripting past and create an HTML Application for Windows that configures all of the Windows WebDAV Redirector settings.

It should be noted, like everything else these days, that this code is provided as-is. ;-]

Using the HTML Application

When you run the application, it will present you with the following user interface, which allows you to configure most of the useful Windows WebDAV Redirector settings:

Creating the HTML Application

To create this HTML Application, save the following HTMLA code as "WebDAV Redirector Settings.hta" to your computer, and then double-click its icon to run the application.

<html>

<head>
<title>WebDAV Redirector Settings</title>
<HTA:APPLICATION
  APPLICATIONNAME="WebDAV Redirector Settings"
  ID="WebDAV Redirector Settings"
  VERSION="1.0"
  BORDER="dialog"
  BORDERSTYLE="static"
  INNERBORDER="no"
  SYSMENU="no"
  MAXIMIZEBUTTON="no"
  MINIMIZEBUTTON="no"
  SCROLL="no"
  SCROLLFLAT="yes"
  SINGLEINSTANCE="yes"
  CONTEXTMENU="no"
  SELECTION="no"/>

<script language="vbscript">
' ----------------------------------------
' Start of main code section.
' ----------------------------------------

Option Explicit

Const intDialogWidth = 700
Const intDialogHeight = 620
Const HKEY_LOCAL_MACHINE = &H80000002
Const strWebClientKeyPath = "SYSTEM\CurrentControlSet\Services\WebClient\Parameters"
Const strLuaKeyPath = "Software\Microsoft\Windows\CurrentVersion\Policies\System"
Dim objRegistry
Dim blnHasChanges

' ----------------------------------------
' Start the application.
' ----------------------------------------

Sub Window_OnLoad
  On Error Resume Next
  ' Set up the UI dimensions.
  Self.resizeTo intDialogWidth,intDialogHeight
  Self.moveTo (Screen.AvailWidth - intDialogWidth) / 2, _
    (Screen.AvailHeight - intDialogHeight) / 2
  ' Retrieve the current settings.
  Document.all.TheBody.ClassName = "hide"
  Set objRegistry = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\default:StdRegProv")
  Call CheckForLUA()
  Call GetValues()
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Check for User Access Control
' ----------------------------------------

Sub CheckForLUA()
  If GetRegistryDWORD(strLuaKeyPath,"EnableLUA",1)<> 0 Then
    MsgBox "User Access Control (UAC) is enabled on this computer." & _
      vbCrLf & vbCrLf & "UAC must be disabled in order to edit " & _
      "the registry and restart the service for the WebDAV Redirector. " & _
      "Please disable UAC before running this application again. " & _
      "This application will now exit.", _
      vbCritical, "User Access Control"
    Self.close
  End If 
End Sub

' ----------------------------------------
' Exit the application.
' ----------------------------------------

Sub ExitApplication()
  If blnHasChanges = False Then
    If MsgBox("Are you sure you want to exit?", _
      vbQuestion Or vbYesNo Or vbDefaultButton2, _
      "Exit Application") = vbNo Then
      Exit Sub
    End If
  Else
    Dim intRetVal
    intRetVal = MsgBox("You have unsaved changes. " & _
      "Do you want to save them before you exit?", _
      vbQuestion Or vbYesNoCancel Or vbDefaultButton1, _
      "Exit Application")
    If intRetVal = vbYes Then
      Call SetValues()
    ElseIf intRetVal = vbCancel Then
      Exit Sub
    End If
  End If
  Self.close
End Sub

' ----------------------------------------
' Flag the application as having changes.
' ----------------------------------------

Sub FlagChanges()
  blnHasChanges = True
End Sub

' ----------------------------------------
' Retrieve the settings from the registry.
' ----------------------------------------

Sub GetValues()
  On Error Resume Next
  Dim tmpCount,tmpArray,tmpString
  ' Get the radio button values
  Call SetRadioValue(Document.all.BasicAuthLevel, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "BasicAuthLevel",1))
  Call SetRadioValue(Document.all.SupportLocking, _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SupportLocking",1))
  ' Get the text box values
  Document.all.InternetServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "InternetServerTimeoutInSec",30)
  Document.all.FileAttributesLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileAttributesLimitInBytes",1000000)
  Document.all.FileSizeLimitInBytes.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "FileSizeLimitInBytes",50000000)
  Document.all.LocalServerTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "LocalServerTimeoutInSec",15)
  Document.all.SendReceiveTimeoutInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "SendReceiveTimeoutInSec",60)
  Document.all.ServerNotFoundCacheLifeTimeInSec.Value = _
    GetRegistryDWORD(strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec",60)
  ' Get the text area values
  tmpArray = GetRegistryMULTISZ( _
    strWebClientKeyPath,"AuthForwardServerList")
  For tmpCount = 0 To UBound(tmpArray)
    tmpString = tmpString & tmpArray(tmpCount) & vbTab
  Next
  If Len(tmpString)>0 Then
    Document.all.AuthForwardServerList.Value = _
      Replace(Left(tmpString,Len(tmpString)-1),vbTab,vbCrLf)
  End If
  blnHasChanges = False
End Sub

' ----------------------------------------
' Save the settings in the registry.
' ----------------------------------------

Sub SetValues()
  On Error Resume Next
  ' Set the radio button values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "BasicAuthLevel", _
    GetRadioValue(Document.all.BasicAuthLevel))
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SupportLocking", _
    GetRadioValue(Document.all.SupportLocking))
  ' Set the text box values
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "InternetServerTimeoutInSec", _
    Document.all.InternetServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileAttributesLimitInBytes", _
    Document.all.FileAttributesLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "FileSizeLimitInBytes", _
    Document.all.FileSizeLimitInBytes.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "LocalServerTimeoutInSec", _
    Document.all.LocalServerTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "SendReceiveTimeoutInSec", _
    Document.all.SendReceiveTimeoutInSec.Value)
  Call SetRegistryDWORD( _
    strWebClientKeyPath, _
    "ServerNotFoundCacheLifeTimeInSec", _
    Document.all.ServerNotFoundCacheLifeTimeInSec.Value)
  ' Set the text area values
  Call SetRegistryMULTISZ( _
    strWebClientKeyPath, _
    "AuthForwardServerList", _
    Split(Document.all.AuthForwardServerList.Value,vbCrLf))
  ' Prompt to restart the WebClient service
  If MsgBox("Do you want to restart the WebDAV Redirector " & _
    "service so your settings will take effect?", _
    vbQuestion Or vbYesNo Or vbDefaultButton2, _
    "Restart WebDAV Redirector") = vbYes Then
    ' Restart the WebClient service.
    Call RestartWebClient()
  End If
  Call GetValues()
End Sub

' ----------------------------------------
' Start the WebClient service.
' ----------------------------------------

Sub RestartWebClient()
  On Error Resume Next
  Dim objWMIService,colServices,objService
  Document.All.TheBody.ClassName = "hide"
  Set objWMIService = GetObject( _
    "winmgmts:{impersonationLevel=impersonate}!\\.\root\cimv2")
  Set colServices = objWMIService.ExecQuery( _
    "Select * from Win32_Service Where Name='WebClient'")
  For Each objService in colServices
    objService.StopService()
    objService.StartService()
  Next
  Document.All.TheBody.ClassName = "show"
End Sub

' ----------------------------------------
' Retrieve a DWORD value from the registry.
' ----------------------------------------

Function GetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDefaultValue)
  On Error Resume Next
  Dim tmpDwordValue
  If objRegistry.GetDWORDValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpDwordValue)=0 Then
    GetRegistryDWORD = CLng(tmpDwordValue)
  Else
    GetRegistryDWORD = CLng(tmpDefaultValue)
  End If
End Function

' ----------------------------------------
' Set a DWORD value in the registry.
' ----------------------------------------

Sub SetRegistryDWORD( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpDwordValue)
  On Error Resume Next
  Call objRegistry.SetDWORDValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    CLng(tmpDwordValue))
End Sub

' ----------------------------------------
' Retrieve a MULTISZ value from the registry.
' ----------------------------------------

Function GetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName)
  On Error Resume Next
  Dim tmpMultiSzValue
  If objRegistry.GetMultiStringValue( _
      HKEY_LOCAL_MACHINE, _
      tmpKeyPath, _
      tmpValueName, _
      tmpMultiSzValue)=0 Then
    GetRegistryMULTISZ = tmpMultiSzValue
  Else
    GetRegistryMULTISZ = Array()
  End If
End Function

' ----------------------------------------
' Set a MULTISZ value in the registry.
' ----------------------------------------

Sub SetRegistryMULTISZ( _
    ByVal tmpKeyPath, _
    ByVal tmpValueName, _
    ByVal tmpMultiSzValue)
  On Error Resume Next
  Call objRegistry.SetMultiStringValue( _
    HKEY_LOCAL_MACHINE, _
    tmpKeyPath, _
    tmpValueName, _
    tmpMultiSzValue)
End Sub

' ----------------------------------------
' Retrieve the value of a radio button group.
' ----------------------------------------

Function GetRadioValue(ByVal tmpRadio)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If tmpRadio(tmpCount).Checked Then
      GetRadioValue = CLng(tmpRadio(tmpCount).Value)
      Exit For
    End If
  Next
End Function

' ----------------------------------------
' Set the value for a radio button group.
' ----------------------------------------

Sub SetRadioValue(ByVal tmpRadio, ByVal tmpValue)
  On Error Resume Next
  Dim tmpCount
  For tmpCount = 0 To (tmpRadio.Length-1)
    If CLng(tmpRadio(tmpCount).Value) = CLng(tmpValue) Then
      tmpRadio(tmpCount).Checked = True
      Exit For
    End If
  Next
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub Validate(tmpField)
  Dim tmpRegEx, tmpMatches
  Set tmpRegEx = New RegExp
  tmpRegEx.Pattern = "[0-9]"
  tmpRegEx.IgnoreCase = True
  tmpRegEx.Global = True
  Set tmpMatches = tmpRegEx.Execute(tmpField.Value)
  If tmpMatches.Count = Len(CStr(tmpField.Value)) Then
    If CDbl(tmpField.Value) => 0 And _
      CDbl(tmpField.Value) =< 4294967295 Then
      Exit Sub
    End If
  End If
  MsgBox "Please enter a whole number between 0 and 4294967295.", _
    vbCritical, "Validation Error"
  tmpField.Focus
End Sub

' ----------------------------------------
'
' ----------------------------------------

Sub BasicAuthWarning()
  MsgBox "WARNING:" & vbCrLf  & vbCrLf & _
    "Using Basic Authentication over non-SSL connections can cause " & _
    "serious security issues. Usernames and passwords are transmitted " & _
    "in clear text, therefore the use of Basic Authentication with " & _
    "WebDAV is disabled by default for non-SSL connections. That " & _
    "being said, this setting can override the default behavior for " & _
    "Basic Authentication, but it is strongly discouraged.", _
    vbCritical, "Basic Authentication Warning"
End Sub

' ----------------------------------------
' End of main code section.
' ----------------------------------------

</script>
<style>
body { color:#000000; background-color:#cccccc;
  font-family:'Segoe UI',Tahoma,Verdana,Arial; font-size:9pt; }
fieldset { padding:10px; width:640px; }
.button { width:150px; }
.textbox { width:200px; height:22px; text-align:right; }
.textarea { width:300px; height:50px; text-align:left; }
.radio { margin-left:-5px; margin-top: -2px; }
.hide { display:none; }
.show { display:block; }
select { width:300px; text-align:left; }
table { border-collapse:collapse; empty-cells:hide; }
h1 { font-size:14pt; }
th { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
td { font-size:9pt; text-align:left; vertical-align:top; padding:2px; }
big { font-size:11pt; }
small { font-size:8pt; }
</style>
</head>

<body id="TheBody" class="hide">

<h1 align="center" id="TheTitle" style="margin-bottom:-20px;">WebDAV Redirector Settings</h1>
<div align="center">
<p style="margin-bottom:-20px;"><i><small><b>Note</b>: See <a target="_blank" href="http://go.microsoft.com/fwlink/?LinkId=324291">Using the WebDAV Redirector</a> for additional details.</small></i></p>
  <form>
    <center>
    <table border="0" cellpadding="2" cellspacing="2" style="width:600px;">
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Security Settings">
        <legend>&nbsp;<b>Security Settings</b>&nbsp;</legend>
        These values affect the security behavior for the WebDAV Redirector.<br>
        <table style="width:600px;">
          <tr title="Specifies whether the WebDAV Redirector can use Basic Authentication to communicate with a server.">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Basic Authentication Level</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Using basic authentication can cause <u>serious security issues</u> as the username and password are transmitted in clear text, therefore the use of basic authentication over WebDAV is disabled by default unless the connection is using SSL.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel0"></td>
                <td style="width:280px"><label for="BasicAuthLevel0">Basic Authentication is disabled</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel1"></td>
                <td style="width:280px"><label for="BasicAuthLevel1">Basic Authentication is enabled for SSL web sites only</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="2" name="BasicAuthLevel" onchange="VBScript:FlagChanges()" id="BasicAuthLevel2" onClick="VBScript:BasicAuthWarning()"></td>
                <td style="width:280px"><label for="BasicAuthLevel2">Basic Authentication is enabled for SSL and non-SSL web sites</label></td>
              </tr>
            </table>
            </td>
          </tr>
          <tr title="Specifies a list of local URLs for forwarding credentials that bypasses any proxy settings. (Note: This requires Windows Vista SP1 or later.)">
            <td style="width:300px">
            <table border="0">
              <tr>
                <td style="width:300px"><b>Authentication Forwarding Server List</b></td>
              </tr>
              <tr>
                <td style="width:300px;"><span style="width:280px;padding-left:20px;"><small><i><b>Note</b>: Include one server name per line.</i></small></span></td>
              </tr>
            </table>
            </td>
            <td style="width:300px"><textarea class="textarea" name="AuthForwardServerList" onchange="VBScript:FlagChanges()"></textarea></td>
          </tr>
          <tr title="Specifies whether the WebDAV Redirector supports locking.">
            <td style="width:300px"><b>Support for WebDAV Locking</b></td>
            <td style="width:300px">
            <table style="width:300px">
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="1" checked name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking1"></td>
                <td style="width:280px"><label for="SupportLocking1">Enable Lock Support</label></td>
              </tr>
              <tr>
                <td style="width:020px"><input class="radio" type="radio" value="0" name="SupportLocking" onchange="VBScript:FlagChanges()" id="SupportLocking0"></td>
                <td style="width:280px"><label for="SupportLocking0">Disable Lock Support</label></td>
              </tr>
            </table>
            </td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="width:600px;text-align:left"><fieldset title="Time-outs">
        <legend>&nbsp;<b>Time-outs and Maximum Sizes</b>&nbsp;</legend>
        These values affect the behavior for WebDAV Client/Server operations.<br>
        <table border="0" style="width:600px;">
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with non-local WebDAV servers.">
            <td style="width:300px"><b>Internet Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="InternetServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="30"></td>
          </tr>
          <tr title="Specifies the connection time-out for the WebDAV Redirector uses when communicating with a local WebDAV server.">
            <td style="width:300px"><b>Local Server Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="LocalServerTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="15"></td>
          </tr>
          <tr title="Specifies the time-out in seconds that the WebDAV Redirector uses after issuing a request.">
            <td style="width:300px"><b>Send/Receive Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="SendReceiveTimeoutInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the period of time that a server is cached as non-WebDAV by the WebDAV Redirector. If a server is found in this list, a fail is returned immediately without attempting to contact the server.">
            <td style="width:300px"><b>Server Not Found Cache Time-out</b> <small>(In Seconds)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="ServerNotFoundCacheLifeTimeInSec" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="60"></td>
          </tr>
          <tr title="Specifies the maximum size in bytes that the WebDAV Redirector allows for file transfers.">
            <td style="width:300px"><b>Maximum File Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileSizeLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="50000000"></td>
          </tr>
          <tr title="Specifies the maximum size that is allowed by the WebDAV Redirector for all properties on a specific collection.">
            <td style="width:300px"><b>Maximum Attributes Size</b> <small>(In Bytes)</small></td>
            <td style="width:300px"><input class="textbox" type="text" name="FileAttributesLimitInBytes" onchange="VBScript:FlagChanges()" onblur="VBScript:Validate(Me)" value="1000000"></td>
          </tr>
        </table>
        </fieldset> </td>
      </tr>
      <tr>
        <td style="text-align:center">
        <table border="0">
          <tr>
            <td style="text-align:center"><input class="button" type="button" value="Apply Settings" onclick="VBScript:SetValues()">
            <td style="text-align:center"><input class="button" type="button" value="Exit Application" onclick="VBScript:ExitApplication()">
          </tr>
        </table>
        </td>
      </tr>
    </table>
    </center>
  </form>
</div>

</body>

</html>
Additional Notes

You will need to run this HTML Application as an administrator in order to save the settings and restart the Windows WebDAV Redirector. (Which is listed as the "WebClient" service in your Administrative Tools.)

This HTML Application performs basic validation for the numeric fields, and it prevents you from exiting the application when you have unsaved changes, but apart from that there's not much functionality other than setting and retrieving the registry values. How else can you get away with posting an application in a blog with only 500 lines of code and no compilation required? ;-]

Note: This blog was originally posted at http://blogs.msdn.com/robert_mcmurray/
Posted: Oct 07 2011, 09:00 by Bob | Comments (0) RSS comment feed |
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Filed under: IIS | Scripting | WebDAV
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