' This script was originally published in the Exchange Cookbook,
' (http://www.exchangebookcook.com). Written by Paul Robichaux, 
' Missy Koslosky, and Devin Ganger. Redistributed with permission 
' of the publisher, O'Reilly & Associates.

' This code enables attachment blocking on an OWA 2003 server,
' allowing access only to users who connect to one of the specified FE servers
' ------ SCRIPT CONFIGURATION ------
strOWA = "HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\MSExchangeWeb\OWA\"
strAllowedFEs = "<FE names>" ' e.g. "BATMAN SUPERMAN"
' ------ END CONFIGURATION ---------

Set objWSH = wscript.CreateObject("WScript.Shell")
objWSH.RegWrite strOWA & "DisableAttachments", 2, "REG_DWORD"
WScript.echo "DisableAttachments set to disallow access except through FEs"
objWSH.RegWrite strOWA & "AcceptedAttachmentFrontEnds", strAllowedFEs, "REG_SZ"