I managed to fix this although I cannot put my finger on the exact solution, this is what i did.
1. Installed all available windows updates, including the latest MSSQL 2005 service pack and other vista updates.
2. Installed KB960075 to fix an unrelated VS2008 issue.
http://code.msdn.microsoft.com/Proje...ownloadId=5728
3. Rebooted to finish the updates.
Hope this helps.
Posted as a reply to:
Problems adding a web service
I also have this problem. Did you find a solution?
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WCF Workflow Services Using External Data Exchange
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