1) Download "spy bot - search & destroy" and install it then run it in easy mode and MAKE SURE YOU UPDATE IT and purge anything you come up with.
Spybot
http://spybot.safer-networking.de/in...&page=download
2) Download AdAware and do pretty much the same thing.
AdAware
http://www.lavasoft.de/software/adaware/
OR AdAware here...
http://download.com.com/3000-2144-10...ml?tag=lst-0-1
3) Download the Startup Control Panel and run it. You can disable anything and everything that starts up on your computer that has been installed by a program other than Windows... provided it has left its mark and can be stopped (some viruses don't let you do this sadly).
Startup Control Panel
http://www.mlin.net/StartupCPL.shtml
Actually, I suggest EVERYONE download at least the Startup Control Panel. You can stop annoying programs from starting everytime you boot up and wasting memory... like CDCreator, Intellimouse, etc. that you really don't need starting, at least starting all the freaking time!
Hope that helps ya out a bit.