NUnit “missing” GPSVC.DLL on Windows 7/64

Question

I recently upgraded from Vista/32 to Win7/64. On my old machine, everything was working fine.

Unfortunately, on my new machine NUnit won\'t load my unit tests, with

Answer 1

Windows has a 64-bit command prompt, but you can get a 32-bit one by starting c:\windows\syswow64\cmd.exe explicitly. From there you can call c:\windows\syswow64\regsvr32.exe and the registration will succeed.