Adaware is a good program to eliminate the spyware. One to watch out for that is especially bad to get rid of is "Gator". It shows a cute alligator hiding behind a fence offering to help you fill in forms on web sites. DON'T DOWNLOAD IT my daughter grabbed it because it was cute and it installed itself several times. The TaskManager revealed over 50% of the PC load was from this beast indexing and reporting back our activities and the popup traffic became atrocious. I finally had to go find each process in the TaskManager list, identify if it was related to Gator and nuke it. Finally we had good response again and relative freedom from popups. I did not have AdAware on the PC at the time but it does find it.
Ron