I was working on this machine that was so infected, evey time I went to a new webpage, 3 more IE windows would open. It a good thing I knew what I was looking for. ActiveX controls tried to install twice on my way. After finaly downloading a spyware cleaner and installing it, then scanning and finding 45 threats. I cleared them, rescanned and found 3 more. Those 3 kept comming back. I tried to kill the related process, but it would just start up again. I tried several trick and the google results had way too many steps. After I finialy cleared all the threats, I still had browser popups. I gave up after 1 1/2 hours.