I just finished installing Avast 4.6 personal on Windows Vista 5270.
I am pleased to state that the install completed without any complications.
The protection is up and running on my computer at this moment.

I read this article:
http://www.microsoft.com/technet/community/columns/cableguy/cg0106.mspx
and there's written:
"if you want to configure an exception for the range of ports 1090-1095, you

I have not made much of an effort to evaluate AV software having fallen in
love with Norton along about the time that many of the readers of this post
were still in ... :-)  (I marked forty years in this game last month:-(((
At any rate, I've liked AVG as a free alternative, ...

I have read this article
http://www.microsoft.com/technet/community/columns/cableguy/cg0106.mspx
and it's not clear this statements:
"The default behavior of the new Windows Firewall is to:

I've heard (although cant find) that this is part of a security effort for
compliance with the windows logo program. Could someone eloborate a little
more on it if you've come accross. Bearing in mind that our environment is a
locked down environment maybe usefull here

Not sure if this has behavior has been in Windows 2000, but since XP, if you
choose the "Launch folder wonders in a separate process" option, any new
Explorer processes start in High priority.
Bug? feature? shouldn't it be based on the priority of the parent Desktop

I am going to post what I said about security in Vista on my blog:
With all the Security Improvements and innovations, I don't think users will
be missing much in terms of AntiVirus. The out of the box experience
experience is just tremendous, User Account Protection, Secure ...