I compiled my project with a plugin that I made for both platforms, x86 and x64. The final result is, that the plugins work on my PC and they dont work on my testers pc. The bundle(mac) version works fine. Might it be the vs2010 compiler settings? This is the error found on the log file: Code (csharp): Fallback handler could not load library C:/Users/xxxx/Downloads/MoDyEn DLL Forest Club/MoDyEn DLL Forest Club/game_Data/Mono/.\C:/Users/xxxx/Downloads/MoDyEn DLL Forest Club/MoDyEn DLL Forest Club/game_Data/Plugins/MoDyEnPhysics64.dll I've had simmilar problems when I used the Debug version of my plugin, but this time both plugins are Release versions.