Error message when client computers that are behind a proxy server access Web sites that are published by using ISA Server 2004: "404 Not Found. The requested item could not be located (12028)" (917265)

RESOLUTION

1. Click Start, point to Programs, point to Accessories, and then click Notepad.
2. Copy and paste the following code into a new Notepad document, and then save it to a file name with a .vbs extension such as AddReuseSessionForDifferentHostHeader.vbs:

   ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
   '
   ' Copyright (c) Microsoft Corporation. All rights reserved.
   ' THIS CODE IS MADE AVAILABLE AS IS, WITHOUT WARRANTY OF ANY KIND. THE ENTIRE
   ' RISK OF THE USE OR THE RESULTS FROM THE USE OF THIS CODE REMAINS WITH THE
   ' USER. USE AND REDISTRIBUTION OF THIS CODE, WITH OR WITHOUT MODIFICATION, IS
   ' HEREBY PERMITTED.
   ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
    
   ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
   ' This script adds a new VendorParametersSets under the array root.
   ' Used to added new parameters that are needed for hotfixes or service packs.
   ''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''''
    
   Sub AddReuseSessionForDifferentHostHeader()
    
       ' Create the root obect.
       Dim root  ' The FPCLib.FPC root object
       Set root = CreateObject("FPC.Root")
    
       'Declare the other objects needed.
       Dim array       ' An FPCArray object
       Dim VendorSets  ' An FPCVendorParametersSets collection
       Dim VendorSet   ' An FPCVendorParametersSet object
    
       ' Get references to the array object
       ' and the network rules collection.
       Set array = root.GetContainingArray
       Set VendorSets = array.VendorParametersSets
    
       On Error Resume Next
       Set VendorSet = VendorSets.Item( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
    
       If Err.Number <> 0 Then
           Err.Clear
    
           ' Add the item
           Set VendorSet = VendorSets.Add( "{143F5698-103B-12D4-FF34-1F34767DEabc}" )
           CheckError
           WScript.Echo "New VendorSet added... " & VendorSet.Name
    
       Else
           WScript.Echo "Existing VendorSet found... value- " &  VendorSet.Value("ReuseSessionForDifferentHostHeader")
       End If
    
       if VendorSet.Value("ReuseSessionForDifferentHostHeader") <> true Then
    
           Err.Clear
           VendorSet.Value("ReuseSessionForDifferentHostHeader") = true
    
           If Err.Number <> 0 Then
               CheckError
           Else
               VendorSets.Save false, true
               CheckError
    
               If Err.Number = 0 Then
                   WScript.Echo "Done with ReuseSessionForDifferentHostHeader, saved!"
               End If
           End If
       Else
           WScript.Echo "Done with ReuseSessionForDifferentHostHeader, 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
    
   AddReuseSessionForDifferentHostHeader
   

3. Double-click the .vbs file to run the script.