I just installed Orcas Beta 2 for the first time. And I was so lucky as to run into an (small) problem within the first 2 minutes of using it. ;) I seriously don’t know how I do that, but it seems to happen every time I use a beta product. When starting my first WCF Service in 2008 by hitting F5 I was immediatelly greeted by an Exception.

Unhandled Exception: System.IO.FileLoadException: Could not load file or assembly ‘svcutil, Version=3.0.0.0, [blabla] Strong name validation failed.

Well, in this case the culprit was svcutil.exe, to be more specific a missing signing. There is an easy way around this problem. Locate the svcutil.exe (usually located “%PROGRAMFILES%\Microsoft SDKs\Windows\V6.0A\Bin\svcutil.exe”) an tell .NET to skip sigrnature verification for it by using
sn -Vr "%PROGRAMFILES%\Microsoft SDKs\Windows\V6.0A\Bin\svcutil.exe"

Happy coding.