thats the thing with spyware. it is always gets at you. some program that u dont realize is running and then whenu go to shut down your computer, some "ending program" thing shows up and then you go, "huh?" where did that come from?" definetely ad aware or spybot. two good programs. or spysweeper i guess is good. havent really tried. of course, i you want to pay, then there are dozens out there too. but those three i think those are the best right now.