Avira Antivir....the powerful antivirus for PC and Pen Drive

Hello Friends,
I got a new Antivirus named Avira Antivir.It is a powerful antivirus.It kills all the virus in the pendrive.When I inserted my pen drive it suddenly detect the autorun virus.
The personal edition of this antivirus is free .To download personal edition use the following link.

http://www.download.com/Avira-AntiVir-Personal-Free-Antivirus/3000-2239_4-10322935.html?part=dl-10322935&subj=dl&tag=button&cdlPid=10877501

or visit its website

http://www.free-av.com/en/download/1/avira_antivir_personal__free_antivirus.html

Regards...........