VC 8.0 to VS2013 Error

I am using a code in:

https://sourceforge.net/projects/ewavetrade/

Apparently, it is written with VC++ 8.0 and I'm using VS 2013. I get this error:

Error 101 error C2065: 'CString' : undeclared identifier D:program filesmicrosoft visual studio 12.0vcincludestdio.h 211 1 ElliotEngine

on this line,

_Check_return_ _CRT_INSECURE_DEPRECATE(fopen_s) _CRTIMP FILE * __cdecl fopen(_In_z_ CString* _Filename, _In_z_ const char * _Mode);

Could you please help me? Thanks :)