Spring RTS Engine

Does any one know of a good anti-virus boot cd thats good
and free ,,,

I need to scan some systems before I do some software
upgrades. So, if you know of a good product thats FREE ..
post a link to it ...

Clamwin?

This looks good:
http://www.avast.com/eng/avast_bart_cd.html
It's a trial though.

You could probably build your own disk with bartPE and install all your favorite antivirus and antispyware programs. This site would help make that easy: http://www.bootcd.us/BartPE_Plugins_Category/antivirus/
BartPE: http://www.nu2.nu/pebuilder/