Free Anti-virus and Anti Spyware programs

Here are some free Anti-virus programs and Anti Spyware programs, credit to [sanctified] from neowin.net for the links to these.

Anti-virus

AntiVir - http://www.free-av.com
Avast - http://www.avast.com
AVG - http://www.grisoft.com
ClamWin - http://www.clamwin.com

Anti Spyware

Ad-aware - http://www.lavasoft.de/software/adaware
Bazooka - http://www.kephyr.com/spywarescanner/index.html
Diet K - http://www.dietk.com
SpyBot Search & Destroy - http://spybot.safer-networking.de
SpywareBlaster - http://www.javacoolsoftware.com/spywareblaster.html
SpywareGuard - http://www.wilderssecurity.net/spywareguard.html
WinPatrol - http://www.winpatrol.com/

Feel free to post your own aswell.

Hey thanks for that great list--those will be helpfull I'm sure...There is also the MS AntiSpyware Beta which I'm using atm and its pretty powerful stuff.

Windows antispyware? Doesn't it list Firefox as a threat or so I saw?

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Does anyone have a good list of mobile programs like this (as in, ones you can run directly from a USB key)?