We have recently upgraded our development environments on my project to match the production environment which is running on a 64bit servers. There was a big gotcha which was the delayed signed dll’s in the dev environment were chucking a “Strong name validation failed” error when they were accessed.
There are well documented solutions around using the following command
SN.exe -Vr *,*
However this did not work on the 64bit computer because SN.exe is a 32bit program and put the entry in the 32bit part of the registry. So I moved the registry key this tool enters and put it in the 64bit part of the registry and then everything worked.
Hope that helps some people out there ;)