For all of you struggling with the c# Express 2010 and ResGen errors on 64bit systems, I have good news! Just install .net4.5 and everything now works!
I just did it today and now I can actually develop again. I tried for hours trying to fix the error and non of the posted fixes ever fixed the problem...I had resorted to only being able to use 32bit windows for development, but now 64bit is online again!
RESGEN Solved! (.Net4.5)
Re: RESGEN Solved! (.Net4.5)
That's great news. I'm installing .Net 4.5 right now on my 64bit system. Should I still run the recommended CorFlags command line? Thanks!