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I've had the same problem. I tried all of your attemps and none have worked. None of the things you posted came up on HijackThis or ad-aware. But when i searched i did find C:WINDOWSmultimpp.dll. But it wouldn't let me delete it. What do I do these popups are reallllllyyyyyy ticking me off ..P.s I have spy sweeper full version and it wont seem to delete it!