Msn Messenger voice communications
Protocol: UDP
Direction: Outbound
Remote Port(s): 6501
Action: Allow It

Msn Messenger file transfer
Protocol: TCP
Local Port: 6891-6900
Action: Allow It

Msn Messenger Remote Assistance
Protocol: TCP
Direction: Outbound
Remote Port(s): 3389
Action: Allow It

Msn Messenger Application Sharing and Whiteboard
Protocol: TCP
Direction: Outbound
Remote Port(s): 7800-7825
Action: Allow It

Msn Messenger RTP connection
Protocol: TCP
Direction: Outbound
Remote Port(s): 5100
Action: Allow It