Trying to locate current antivirus software that supports Windows NT 4.0. After finally bowing to convention, I'm (obviously) online, using an NT platform from a previous contractor position. The installed AV is Norton from 1997. Norton no longer supports WinNT (according to them) and nor does McAfee. What's left? Getting an upgrade from NT 4 to XP Pro is not an option for me at this time.

Take a look at KAV. One of the best out there...

SYMANTEC ANTIVIRUS CORPORATE EDITION 8.0 FOR WINDOWS CLIENTS

Windows 98, Windows 98 SE, Windows Millennium Edition; Windows NT 4.0 Workstation, Server, and Terminal Server Edition with Service Pack 6a; Windows 2000 Professional, Server, Advanced Server; Windows XP Home, Professional
32 MB RAM minimum
45 MB disk space
Intel Pentium processor (Pentium II or higher recommended)

I did actually mean KAV (Kaspersky Anti-Virus), also known as AVP (Anti-Virus Toolkit Pro),
and not NAV (Norton/Symantec Antivirus) which is also one of the best.
One more thing... I don't think Chief Bill looks like a corporate user...