stdafx.h, precompiled headers and windows.h

[dis1411]

i assume the real problem is that something didn't work, you saw 'include windows.h' and tried that.

if that's the case, know that with an MFC app you're already including a windows.h as you've figured out. you don't need to explicitly include it. the problem is that the windows.h your project is using predates whatever example you were looking at. so, it's simply time to begin using a newer version of windows.h

this is done by grabbing the latest windows/platform sdk (that's compatible with your IDE). once you install it, tell your IDE to use the newer files instead of the ones that came with the product.

you do this by digging around the IDE's options and add the paths to the appropriate subsection (make sure they are listed before the original paths):

Executable files: C:\Program Files\Microsoft Platform SDK\Bin
Include files: C:\Program Files\Microsoft Platform SDK\include
Library files: C:\Program Files\Microsoft Platform SDK\lib