SpyBot Search & Destroy

Spybot-S&D was written by the German software engineer Patrick Michael Kolla, and is distributed by Kolla's Irish company Safer Networking Limited. Development began in 2000 when Kolla, still a student, wrote a small program to deal with the Aureate/Radiate and Conducent TimeSink programs, two of the earliest examples of adware.
Along with spyware and adware detection and disinfection capabilities, Spybot-S&D can repair the Registry, Winsock LSPs, ActiveX objects, browser hijackers and BHOs, PUPS, computer cookies, trackerware, heavy duty, homepage hijackers, keyloggers, LSP, tracks, trojans, spybots, revision, and other kinds of malware. It can also to some extent protect a user's privacy by deleting usage tracks like tracking cookies. Spybot-S&D also includes an "Immunize" feature to block the installation of spyware before it occurs e.g. by modifying the hosts file. Another tool included in Spybot-S&D is a file shredder, for the secure deletion of files. Spybot-S&D is not intended to replace anti-virus programs, but it does detect some common trojans.

Spybot-S&D also recently added an anti-rootkit function.

Download Links:

SpyBot Search & Destroy 1.6.2