One of my colleagues get these popups in winxp SP2 that aren't really pop-ups. They are from xads.offeroptimizer.com or something, and is without a doubt a left-over from a raid of adware hitting our office.

I've runned Adaware SE Personal, Xoftspy (registered) and SpyBot, but nothing seems to fix the problem. I've also deleted all references to a scanreg.exe in his registry, but this solved another virii, not the one I'm talking about.

Attached you'll find the HijackThis.log.

Thanks for any help.