www.webroot.com SpySweeper they redid their software, they cover everything even more then Spybot - Search & Destroy, with SpySweeper you get cover for.
Internet Explorer ShieldsIE Favorites Shield
IE Home Page Shield
IE Search Page Shield
IE Hijack Shield
Host Files ShieldsCommon ad sites shield
Host file shield
Windows System ShieldMemory Shield
spy instillation shield
Windows massager service shield
(company's use more of not home users unless you have a network)
Startup Programs shieldStartup Shield.
it even take care of Trojan horses downloaders types it remove them totally.
i do a double check on Fridays: Lavasoft Ad-Aware SE Personal, HijackThis, Spybot - Search & Destroy
stay on all the times when going through the INTERNET sites: Panicware-Pop-Up Stopper Professional, webroot-SpySweeper.