@SGaist @hskoglund @belab @Franckynos Thank you for helping me! You were right, I did not import the symbols. I added this : #ifdef GAME_EXPORTS # define GAME_API __declspec(dllexport) #else # define GAME_API __declspec(dllimport) #endif to my DLL code and now everything works. Have a nice day, you rock! :-)