i had the same problem with 1025 when i had zonealarm. click here its the same for other ms games pre installed.just tell the firewall to block or ask permission for the games and the port will be closed.
"Who is Attacking You? Any Internet monitor will alert you when someone is probing or attacking your computer. (And you're going to be really surprised how much of that is going on!) But this raises the question is: "Who is this attacker?" It's quite frustrating to have nothing but the attacker's IP address."
Sadly the information on this website has been pulled apart by the internet security community for a while.