2005 Express: Can't open 'windows.h'

Microsoft Visual C++ 2005 Express can't find the include file 'windows.h.'

I know there is an easy solution, but I have no idea what it is.

Any ideas?

Then include <windows.h> or use Dev-C++.

It's right there in my code

Code:

#include <windows.h>

It is causing the compiler error as well.

EDIT:

It seems it was not in the compiler's search path.

Thanks

Using Visual C++ 2005 Express Edition with the Microsoft Platform SDK.