Vistronic

Anti-spyware
Spybot-Search & Destroy, the best (according to PC World, PC Mag, …) privacy software available!
http://www.safer-networking.org/en/mirrors/index.html
Has great system tools in advanced mode also! Like startup editor in win 2000!

Ad-Aware® Personal http://www.lavasoft.de/
Ad-Aware® is designed to provide advanced protection from known Data-mining, aggressive advertising, Parasites, Scumware, selected traditional Trojans, Dialers, Malware, Browser hijackers, and tracking components. With the release of Ad-Aware SE Personal edition, Lavasoft takes the fight against Spyware to the next level.
http://www.download.com/3000-2144-10045910.html?part=69274&subj=dlpage&tag=button

Spyware Blaster
Prevention: Shields up block Spyware
http://www.javacoolsoftware.com/spywareblaster.html

Pending:
(New) Microsoft® Windows AntiSpyware (Beta)
Windows AntiSpyware (Beta) is a security technology that helps protect Windows users from spyware and other potentially unwanted software.
http://www.microsoft.com/downloads/

Filed under: Freeware