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if you need more stuff to check the PC - this is the authors download page - he also has a program called hijackthis hat goes along with cwshredder to totally disinfect from spyware - I dont even run much except adaware from lavasoft and these programs when I get infected reviewing sites and it has always taken care of the problems
http://www.spywareinfo.com/~merijn/downloads.html
note that these programs get updated pretty frequently so its best to D/L the most recent one from the authors site each time you want to run it - it's almost a daily battle to keep up with the spyware kiddies