Never mind, I finally found the answers to my own questions:

Patch for windows:
http://support.f-secure.com/enu/corporate/downloads/hotfixes/av5-hotfixe
s.shtml

Upgrade to version 7:  http://www.f-secure.com/webclub/fsavsrv.html

Melissa

-----Original Message-----
From: LISTSERV site administrators' forum
[mailto:[log in to unmask]] On Behalf Of Eric Thomas
Sent: Friday, June 01, 2007 3:04 AM
To: [log in to unmask]
Subject: [LSTSRV-L] Critical security patch for F-Secure 4.x & 5.x

If you are running F-Secure Anti-Virus version 4.x or 5.x, you should
install this hotfix immediately:

http://www.f-secure.com/security/fsc-2007-1.shtml

The vulnerability can be exploited remotely and is present in both
Windows and Linux versions. For Windows, the same hotfix will also patch
another vulnerability with the real-time scan function that, in
practice, is of limited concern to LISTSERV installations (the attacker
needs to be able to log in to the Windows server running F-Secure).

The new FSAV 7.x version does NOT have either vulnerability. To use FSAV
7.x, you need to install the LISTSERV 15.0 level set released in
February.

  Eric