Home/ Questions/Q 75939
In Process

The Archive Base Latest Questions

Editorial Team
  • 0
Asked: 2026-05-10T20:35:41+00:00

I’m trying to build a console application without using the CRT, or any other

  • 0

I’m trying to build a console application without using the CRT, or any other imports than kernel32.lib in any case. I get my code to compile, but can’t wrap the linker around a few problems:

unresolved external symbol @__security_check_cookie@4 unresolved external symbol 'int __cdecl FreeLibrary(void *)' (?FreeLibrary@@YAHPAX@Z) unresolved external symbol 'void * __cdecl LoadLibraryW(wchar_t *)' (?LoadLibraryW@@YAPAXPA_W@Z) unresolved external symbol 'int (__cdecl*__cdecl GetProcAddress(void *,char *))(void)' (?GetProcAddress@@YAP6AHXZPAXPAD@Z) unresolved external symbol _wmainCRTStartup

FreeLibrary, LoadLibraryW and GetProcAddress I’ve brought in to program explicitly, not using windows.h:

#pragma comment(lib, 'kernel32.lib')  typedef int(*FARPROC)();  void* LoadLibraryW( wchar_t* lpLibFileName ); FARPROC GetProcAddress( void* hModule, char* lpProcName ); int FreeLibrary( void* hLibModule );

I suppose something is wrong with my prototypes. However, the bigger problem are __security_check_cookie and _wmainCRTStartup, which obviously have something to do with the CRT. So I’m wondering how I’d go about overriding the default int wmain(int argc, wchar_t* argv[]) for entrypoint, and how to get rid of whatever the security cookie is.

Share

Leave an answer

You must login to add an answer.

Need An Account,

1 Answer

  1. _wmainCRTStartup is the function that calls wmain()

    IIRC it should be available in some .o file that you can link with, look in your lib directory.

    Maybe this is useful reading too: Reduce EXE and DLL Size with LIBCTINY.LIB (and Matt Pietrek rocks 🙂

    • 0