... __64__ 1 24 "WindowsXP.Manifest 64 " #endif To compile your resources for 64 bits remember to use -D__64__ if EXIST %1.rc %bcdir%\bin\brc32 -r -D__64__ -I%bcdir%\include -I%bcdir%\include\windows\sdk %1 Thank you, adding #ifdef __64__1 24 "WindowsXP.Manifest64"#endif also ...