How to block MSN in a network enviroment

Giganews Newsgroups
Subject: How to block MSN in a network enviroment
Posted by:  CharlesJB (Charles…@discussions.microsoft.com)
Date: Sun, 24 Jun 2007

If there any way to block MSN using MS OS (XP and 2003 Server) enviroment
(register or GPO). I hear about some software that can do that, but I'm not
confident with any of them. I tried to use the firewall features coming with
my 3Com router, but every time I block the port 1863 it block the 80 too.
Thanks

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