Clamav is good, updates as frequently as eztrust (CA) which can be several times daily in "busy" times. Use cron to run periodic scans in the background.
It now cites spyware which other programs do not. Eztrust finally traps a lot of the email attached viruses that used to simply get through untouched to outlook express. Clamav will stop many but not all used with kmail, see below. KMail can use it to prescan emails and it claims its own option to do so as well. Real-time file checks require "dazuko" which I have been unable to compile. The windows version, with or without the UI works as well. Kudo: NEVER let clamav delete infected files. This is because it cites certain errors as infections, for example, zip archives larger than the size limit (which you can set). Also, it does not like cygwin .tar.gz archives for some reason. -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]