thats just what i said, antivirus expired, can be removed... you should try http://www.free-av.de/ i have this too, it is good, this is not one of the infamous "spyware removals" that actually adds more. this antivirus is completely free and doesnt expire.
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but maybe you shouldnt listen to me, My version of Spybot SD doesnt even detect everything, so I go about deleting spyware manually, to good results so far, (smooth running win2000, even with real low systeem specs. (266mhz, 96mb-ram, 16mb-video))