For a list of 'supported' targets see the feature lists below. The Spybot-S&D interface is so easy that updates require simply replacing a file of about 80k in size. Those updates are distributed by my software mailing list, and are also available from inside the Programs Update section.

Another feature of Spybot S&D is the removal of usage tracks, which makes it more complicated for unknown spybots to transmit useful data. The list of last visited websites, opened files, started programs, cookies, all that and more can be cleaned. Supported are the three major browsers Internet Explorer, Netscape Communicator and Opera.

Spybot-S&D also contains some routines to find and correct invalid entries (regarding links left over from software uninstalled long ago, for example) into the registry (the global Windows database for settings).