Which library do I link? ------------------------ If you want to use fmodex.dll: (all plugins compiled into the dll, larger main dll size) Visual Studio users - fmodex_vc.lib. No other compilers are supported for 64bit libraries. If you want to use fmodexp.dll: (plugins left external, smaller main dll size). Visual Studio users - fmodexp_vc.lib. No other compilers are supported for 64bit libraries.