This the example from Iczelion s Win32 Assembly Tutorial part 24. In order to assemble the example, you have to have ml.exe, link.exe and nmake.exe in your path. If they re not in the path, you will have to edit makefile to include the full path. You

Enclosed is MFC source code for a function which can be used to hook any imported function call which your application makes. Since most of the Win32 API is implemented using import functions in dlls, this means that you hook Win32 API calls. This is