|1.||Spybot - Search & Destroy|
An excellent program which removes Spyware, Adware, daillers and many other malacious programs and files on your computer. It can also fix registry problems and remove usage tracks from your registry. It is a free download as are the update files (same with Ad-Aware, another great program).
I use both Ad-Aware and Spybot - Search & Destroy on my computer to remove spyware and other bad programs.