Its probly imbeded it self in your computer registry, which sucks cause its a bitch, beacuse if you go into registy Edit and delete the wrong thing then you whole system is SCREWED...so i wouldnt recomend that unless your desprate... but what you can do is look and if anything looks fishy then search for it on Google and if it comes up then delete it...other than that all the programs previously mentioned will work decently