I have a vb.net 3.5 desktop app. I have compiled its dll with Any CPU settings. I have done the same with my .exe file. This compilation is done on my windows XP which is 32-bit bit. Now after installing the app on windows 7 which is 64-bit, the app does not run. It also does not give any error. Nothing happens when I double-click on the exe. Is it because I have compiled on 32-bit PC?