PolyLoader 2.0 not compiling

here is the compiler output if that helps

"Microsoft (R) C/C++ Optimizing Compiler Version 17.00.60610.1 for x86
Copyright (C) Microsoft Corporation. All rights reserved.

Decrypt.cpp
main.cpp
c:\users\lorien\desktop\hacks\polysubtleaim 1.0_mpgh.net (1)_r\stdafx.h(2) : fat
al error C1083: Cannot open include file: 'TlHelp32.h': No such file or director
y
Generating Code...
Press any key to continue . . ."