Don't think you're ever going to get help like that. I'm staff, learn to respect properly..
Seeing that you are running a program Punkbuster doesn't allow, close out all your shit before running COD4. Also, go through your process list (by opening up task manager and closing the tab) and closing out unnecessary bullshit.. I searched your error code and I didn't really get anything, so it can't be that ordinary of a program..