Free AV for Windows 2k Server?

[rmarcante]

Hi everybody,

my network has been infected by Conficker.
Since it seems it keeps working also on server, I'd like to run an AV also on it.

I've tried Avira but, although I've read that it runs on Win 2k Server, it doesn't seem to install.

Any suggestion on a free AV to run on my Win 2k Server and get rid of the virus?

Thank you in advance

Riccardo