In the file misc.cpp, there are several places where CString.Trim() is used. VC6 doesn't seem to recognize CString.Trim() but you can replace each instance of Trim() with a call to TrimLeft() and then TrimRight().

With that change, it compiles fine with just two warnings about a macro redefinition of _WIN32_WINDOWS within some windows header file which I'm 99% sure is not really a problem.

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"11 seconds is nothing compared to the amount of time in your life you actually waste playing the game" -- Haze