How do I resolve “%1 is not a valid Win32 application”?

Question

Environment:
Windows Server 2003 R2 Enterprise 64bit, SP2
.NET framework is supposedly installed (2.0 SP2, 3.0 SP2, 3.5 SP1)

I say \"suppo

Answer 1

Have you tried running:

aspnet_regiis -i

from the command line?