I am using Visual C 6. I made a Dialog based project by choosing MFC AppWizard(exe). I added some simple fortan subroutine in there, and declared it in my main C file (test1.cpp) with

extern "C" {
void __stdcall FORTEST(void);
}

and called it with

FORTEST();

And I came up with all of these linking errors, with various commands, like "_exit", already defined ( I attached an MS Word file of the error list). So it must have conflicting Fortran and C libraries I assume.
In the past, when I created an empty Win32 Console Application, I was able to call fortran subroutines without a problem, but now that I'm trying to do the MFC AppWizard thing, it doesn't work.
Can someone please help me figure this out?