Yes! yes it does have its own wall...
From: "Mick Murphy" <MickMurphy@discussions.microsoft.com>
Subject: RE: Vista Firewall
Date: Tuesday, November 25, 2008 9:55 PM
Are you using an Internet Security Suite?
If you are, it has its own Firewall.
> helo all,
> just reporting in, vista has alota troubles keeping the firewall in the ON
> postion, even if you go root and reset it, then back to local user, after
> reboot even during session usage, in the name of gawd, the windoes from
> on up still has the same Memory bugs in it, LOL