What do you mean like pop-ups in general? I got a program to that works. It's called the proxomitron. It's not hard to set up. Just type the name in google and look for it. It's version 4.4
I think he's talking about the Kazaa problem. Try Ad-Aware to look for those kinds of things and stop them from happening. Also Try Kazaa-lite over Kazaa. No Popups.