Barnsie

Hello all!

As background: I have a 64 bit Vista Ultimate rig running Virtual PC 2007
(SP1), with a Vista 32 bit VPC set with Shared Networking (NAT) and with Undo
disk turned on (i.e. you can dispose of changes after each session). The host
machine runs Windows Live OneCare (firewall, AV/AS, etc.), and I run as an
Administrator on this machine, but with UAC turned on.

The virtual PC is running NOD32 2.7, and I run as a Standard User on this
instance. I fully patch Windows when updates come out, and update NOD32
before going on the internet with this virtual PC.

How great is the risk of the host Vista OS becoming infected with a virus
from the virtual PC in such a configuration? I know its theoretically
possible, but how realistic?

Thanks in advance!