God is in the details.
~ Ludwig Mies van der Rohe
SpyBot - Search & Destroy (often Spybot-S&D) is a malware, spyware and adware removal program which works on Microsoft Windows 95 and later. Like most malware scanners, Spybot-S&D scans the computer hard disk and/or RAM for malicious software.
Spybot is able to fix problems with tracking cookies, system internals (Registry), Winsock LSPs, ActiveX objects, browser hijackers, BHOs, and is able to protect a user's privacy, to some extent, by deleting usage tracks. Spybot also includes an "Immunize" feature which can be used to block the installation of spyware before it occurs. Another tool included in Spybot is a file shredder, for the secure deletion of files. Spybot is not intended to replace anti-virus programs, but it does detect some common trojans and keyloggers.