Spybot Search and Destroy
As with viruses, spyware has caused such controversy that a number of software programmers have developed utilities to eliminate it. Such is the feeling surrounding the issue that many of these are either shareware or completely free. Perhaps the most complete freeware tool is Spybot Search and Destroy. This not only sniffs out and removes any hidden fiends, it can also immunise your system against over 400 different spies.
