“An attempt was made to load a program with an incorrect format” even when the platforms are the same

Question

I\'m calling functions from a 32-bit unmanaged DLL on a 64-bit system. What I get is:

BadImageFormatException: An attempt was made to load a program w

Answer 1

In my case, I am using a tiny .exe that reloads the referenced DLLs via Reflection. So I just do these steps which saves my day:

From project properties on solution explorer, at build tab, I choose target platfrom x86