Blocking Windows Messaging.

[darren77uk]

Hi there,

I have blocked port 1863 for MSN and this works, but some users are using XP and they can actually get out using the Windows Messaging service to use MSN, anyone have any ideas on how to block this?!

 

[Piloria]

i dont know the port but the best way to find out is to connect using xp and then track through the logs looking for the machine and see what port or method it uses