c++ creating empty project

[lochnessmonster]

when i create an empty project...my compiler is saying _TCHAR* is undefined...what file do i need to include to fix this problem?

#include <iostream>

 using namespace std;




 int _tmain(int argc, _TCHAR* argv[])


 {
 //blah blah blah 




 return 0;


 }

[Ancient Dragon]

tchar.h