AVG Antivirus is antivirus not spyware. It for some reason won't even load
on the new RC1 5536 build. However spyware blaster and spyware guard from http://www.javacoolsoftware.com/ both work on my build
Trend Micro PC Cillin Internet Security seems to run fine and includes
antispyware, antivirus, and a firewall. Its free features, however, are
limited to late October.
Awil's aVast! antivirus works well on RC1 even thought (like most programs)
it is flagged for incompatiblity by Vista.
Only change is you can't update defs or programs from the toolbar ICON but
can from the running program itself.