nasm -f win64 hello.asm -o hello.obj x86_64-w64-mingw32-ld hello.obj -o hello.exe -lkernel32 8.1 Check basic info (using dumpbin ) dumpbin /headers myapp.exe | findstr "machine magic subsystem" Output example:
dumpbin /headers minimal_console.exe | findstr "PE32+" Output: pe32 executable -console- x86-64 for ms windows
PE32+ executable (console) x86-64 for MS Windows nasm -f win64 hello