One tool that is overlooked is the Advanced Mode in Spybot Search & Destroy from
www.safer-networking.org. I have run into many people who do not know about all the great tools that are available only if you change the Mode to Advanced.
1. Winsock LSP - Instantly shows bad or suspicious LSP's
2. System Startup - Instantly shows bad or suspicious startup items
3. Hosts File - shows the contents of the hosts file
4. Browser Pages - displays the dozen or so default browser pages. Allows you to change any of them to the default of your choice
5. BHO's - Instantly shows bad or suspicious Browser Helper Objects and allows you to delete them
6. ActiveX - Instantly shows bad or suspicous ActiveX components and allows you to delete them.