Well, Spy-bot is badass but I think you have to pay for it.
Edit: you may also want to look up your active X controls if you are using Internet Explorer (I don't know about Fire Fox, Netscape, or anything else) because that shit is something I just dealt with on my computer. Go to tools, Internet options, and the Programs tab. Under the programs tab, go to Manage Add-ons and all the Active X BS is there. But you need some of it so don?t disable them all. Look for ones that are unverified, or that have the same name as the F?ing bastards that are popping up.
Edit: you may also want to look up your active X controls if you are using Internet Explorer (I don't know about Fire Fox, Netscape, or anything else) because that shit is something I just dealt with on my computer. Go to tools, Internet options, and the Programs tab. Under the programs tab, go to Manage Add-ons and all the Active X BS is there. But you need some of it so don?t disable them all. Look for ones that are unverified, or that have the same name as the F?ing bastards that are popping up.