Visual c++ in visual studio 2005

Compiler or linker errors?
This 'C++ source file', is it yours?
If not, then where you get this source?
I ask these questions, because if this file is a part of a library then there could be some specific requirement(s) to compile/link it.

Also, you can post the error messages here, just copy them from your IDE.
With given information it is almost impossible to tell where the problem could be. Please update your question with some details.