Live Messenger Beta

> Hi there, just a quick query ever since installing the Live Messenger
> Beta, I have got a new port being used in my UPnP Log on my router.
>
> Port 25002 Protocol UDP. upon searching the internet all I can find out
> about this port is the following..
>
> Port Number: 25002
> TCP / UDP: UDP
> Delivery: No
> Protocol / Name: icl-twobase3
> Port Description: icl-twobase3
> Virus / Trojan: No
>
> Side note: UDP port 25002 uses the Datagram Protocol, a communications
> protocol for the Internet network layer, transport layer, and session
> layer. This protocol when used over PORT 25002 makes possible the
> transmission of a datagram message from one computer to an application
> running in another computer. Like TCP (Transmission Control Protocol), UDP
> is used with IP (the Internet Protocol) but unlike TCP on Port 25002, UDP
> Port 25002 is connectionless and does not guarantee reliable
> communication; it's up to the application that received the message on
> Port 25002 to process any errors and verify correct delivery.
>
> or
>
> port 25002 (UDP) - MOTD - Trojan
>
> or
>
> Alternate SMTP port (optional). It may be of use if your ISP blocks
> standard SMTP port. Alternative SMTP port number is 25002.
>
> Is this anything that I should worry about?? I have done a full
> Antispyware and antivirus scan, but no Trojans have been found.
>
> thanks for any help
>