Symptoms
When a user accesses a SharePoint Web site that is published in Microsoft Internet Security and Acceleration (ISA) Server 2006, ISA Server 2006 SP1 or in Windows Essential Business Server 2008, the user may receive one of the following error messages:
Error message 1HTTP 401 Unauthorized
Error message 2
HTTP 500 The server denied the specified Uniform Resource Locator (URL). Contact the server administrator.
This problem occurs when the following conditions are true:
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In the Web listener that the SharePoint Web publishing rule uses, HTML Form Authentication is configured.
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The Web client sends a POST request to the SharePoint Web site.
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The URL of the POST request contains extended characters. For example, the URL contains é, à , or è.
Cause
This problem occurs because ISA Server or Windows Essential Business Server 2008 cannot parse a URL that contains extended characters. In this case, ISA Server or Windows Essential Business Server 2008 rejects the POST request that the client sends.
Resolution
To resolve this problem, follow these steps:
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Apply the hotfix that is described in Microsoft Knowledge Base article 940250. For more information, click the following article number to view the article in the Microsoft Knowledge Base:
940250 Description of the ISA Server 2006 hotfix package: July 16, 2007
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Copy the following script into Notepad:
Note To resolve this problem in ISA Server 2006, use the following script. You do not have to apply the hotfix in this article for ISA Server 2006 SP1, but you have to use the script.Const SE_VPS_GUID = "{143F5698-103B-12D4-FF34-1F34767DEabc}"
Const SE_VPS_NAME = "CookieFilterDecodeUEncoding" Const SE_VPS_VALUE = true Sub SetValue() ' Create the root object. Dim root ' The FPCLib.FPC root object Set root = CreateObject("FPC.Root") 'Declare the other objects that are needed. Dim array ' An FPCArray object Dim VendorSets ' An FPCVendorParametersSets collection Dim VendorSet ' An FPCVendorParametersSet object ' Get references to the array object ' and to the network rules collection. Set array = root.GetContainingArray Set VendorSets = array.VendorParametersSets On Error Resume Next Set VendorSet = VendorSets.Item( SE_VPS_GUID ) If Err.Number <> 0 Then Err.Clear ' Add the item Set VendorSet = VendorSets.Add( SE_VPS_GUID ) CheckError WScript.Echo "New VendorSet added... " & VendorSet.Name Else WScript.Echo "Existing VendorSet found... value- " & VendorSet.Value(SE_VPS_NAME) End If if VendorSet.Value(SE_VPS_NAME) <> SE_VPS_VALUE Then Err.Clear VendorSet.Value(SE_VPS_NAME) = SE_VPS_VALUE If Err.Number <> 0 Then CheckError Else VendorSets.Save false, true CheckError If Err.Number = 0 Then WScript.Echo "Done with " & SE_VPS_NAME & ", saved!" End If End If Else WScript.Echo "Done with " & SE_VPS_NAME & ", no change!" End If End Sub Sub CheckError() If Err.Number <> 0 Then WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description Err.Clear End If End Sub SetValue -
Save the file as a Microsoft Visual Basic script file by using the .vbs file name extension. For example, save the file by using the following name:
EnableKB940248.vbs
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At a command prompt, move to the location where you saved the EnableKB940248.vbs file.
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Run the following command:
cscript EnableKB940248.vbs
Note After you follow these steps, only the query part of the URL can contain extended characters. The query part follows the question mark (?) in the URL. The part that comes before the question mark in the URL cannot contain extended characters even after you use this resolution.
If you want to remove the changes that are made when you run the script in step 5, run the following script:Const SE_VPS_GUID = "{143F5698-103B-12D4-FF34-1F34767DEabc}"
Const SE_VPS_NAME = "CookieFilterDecodeUEncoding" Const SE_VPS_VALUE = False Sub SetValue() ' Create the root object. Dim root ' The FPCLib.FPC root object root = CreateObject("FPC.Root") 'Declare the other objects that are needed. Dim array ' An FPCArray object Dim VendorSets ' An FPCVendorParametersSets collection Dim VendorSet ' An FPCVendorParametersSet object ' Get references to the array object ' and to the network rules collection. array = root.GetContainingArray VendorSets = array.VendorParametersSets On Error Resume Next VendorSet = VendorSets.Item(SE_VPS_GUID) If Err.Number <> 0 Then Err.Clear() ' Add the item VendorSet = VendorSets.Add(SE_VPS_GUID) CheckError() WScript.Echo("New VendorSet added... " & VendorSet.Name) Else WScript.Echo("Existing VendorSet found... value- " & VendorSet.Value(SE_VPS_NAME)) End If If VendorSet.Value(SE_VPS_NAME) <> SE_VPS_VALUE Then Err.Clear() VendorSet.Value(SE_VPS_NAME) = SE_VPS_VALUE If Err.Number <> 0 Then CheckError() Else VendorSets.Save(False, True) CheckError() If Err.Number = 0 Then WScript.Echo("Done with " & SE_VPS_NAME & ", saved!") End If End If Else WScript.Echo("Done with " & SE_VPS_NAME & ", no change!") End If End Sub Sub CheckError() If Err.Number <> 0 Then WScript.Echo("An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description) Err.Clear() End If End Sub SetValue Change to: [INSERT CORRECTION] Const SE_VPS_GUID = "{143F5698-103B-12D4-FF34-1F34767DEabc}" Const SE_VPS_NAME = "CookieFilterDecodeUEncoding" Const SE_VPS_VALUE = false Sub SetValue() ' Create the root object. Dim root ' The FPCLib.FPC root object Set root = CreateObject("FPC.Root") 'Declare the other objects that are needed. Dim array ' An FPCArray object Dim VendorSets ' An FPCVendorParametersSets collection Dim VendorSet ' An FPCVendorParametersSet object ' Get references to the array object ' and to the network rules collection. Set array = root.GetContainingArray Set VendorSets = array.VendorParametersSets On Error Resume Next Set VendorSet = VendorSets.Item( SE_VPS_GUID ) If Err.Number <> 0 Then Err.Clear ' Add the item Set VendorSet = VendorSets.Add( SE_VPS_GUID ) CheckError WScript.Echo "New VendorSet added... " & VendorSet.Name Else WScript.Echo "Existing VendorSet found... value- " & VendorSet.Value(SE_VPS_NAME) End If if VendorSet.Value(SE_VPS_NAME) <> SE_VPS_VALUE Then Err.Clear VendorSet.Value(SE_VPS_NAME) = SE_VPS_VALUE If Err.Number <> 0 Then CheckError Else VendorSets.Save false, true CheckError If Err.Number = 0 Then WScript.Echo "Done with " & SE_VPS_NAME & ", saved!" End If End If Else WScript.Echo "Done with " & SE_VPS_NAME & ", no change!" End If End Sub Sub CheckError() If Err.Number <> 0 Then WScript.Echo "An error occurred: 0x" & Hex(Err.Number) & " " & Err.Description Err.Clear End If End Sub SetValue
Status
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.