I'm trying to run nunit tests of a 32-bit assembly on a 64-bit machine. When I load the assembly (compiled with VS target platform set to x86) into nunit, I get a FileNotFound exception. The problem is that nunit is running as 64-bit. I found this post by Matevz Gacnik pointing me in the right direction to get around this problem. Here is the fix: You can use corflags to find out what settings the nunit assembly already has: C:\> corflags "C:\Program Files (x86)\NUnit-Net-2.0 2.2.9\bin\nunit-console.exe"...