一、
AOL 改與 McAfee 合作，
推出 McAfee® VirusScan Plus – Special edition from AOL
http://safety.aol.com/isc/BasicSecurity/
不過這次要先註冊 AOL 的帳號才能下載的樣子(沒試過:p)，
聽說多了防火牆 :p 。
二、
另外，知名的數位憑證公司 Comodo 的防火牆與防毒軟體全都免費！
http://www.comodo.com/index.html
個人 && 商業使用都終身免費!!
老闆(CEO)說明為何免費：
http://forums.comodo.com/index.php/topic,764.0.html
三、
PCTools 也推出免費防毒軟體：
http://www.pctools.com/free-antivirus/
四、
老牌的知名防毒軟體 AVG AntiVirus 其實也很不錯啦
http://free.grisoft.com/
五、
Avast! AntiVirus
http://www.avast.com
六、
Avira AntiVir PersonalEdition Classic
http://www.free-av.com
七、
Moon Secure Antivirus
http://www.moonsecure.com引用:
Moon Secure AV is an opensource antivirus currently using the clamav engine due to fast response time and huge AV database.
其他相關：
http://www.openantivirus.org引用:
OpenAntiVirus is a platform for people seriously interested in anti-virus research, network security and computer security to communicate with each other, to develop solutions for various security problems, and to develop new security technologies. Moreover, OpenAntiVirus will also provide an integrative platform for different developing projects related to virus protection and computer security already existing within the Open Source Community.
