VisibleState: 0
Exe:
MSN Messenger Service, msmsgs.exe
MSN Messenger Service, msnmsgr.exe
DefaultState: 1

RuleName: MSN Messenger Connection
Protocol: TCP
RemoteHost 207.46.*.*
RemotePort: 1863
Direction: Outbound
AllowIt

DefaultState: 1
RuleName: MSN Messenger voice communications
Protocol: TCP
LocalPort: 6901
Direction: Outbound
AllowIt

DefaultState: 1
RuleName: MSN Messenger voice communications
Protocol: UDP
RemotePort: 6901
AllowIt

DefaultState: 1
RuleName: MSN Messenger file transfer
Protocol: TCP
RemotePort: 6891-6900
Direction: Outbound
AllowIt

DefaultState: 1
RuleName: MSN Messenger Remote Assistance
Protocol: TCP
RemotePort: 3389
Direction: Outbound
AllowIt
↑これはブロックする。

DefaultState: 1
RuleName: MSN Messenger Application Sharing and Whiteboard
Protocol: TCP
RemotePort: 1503
Direction: Outbound
AllowIt

DefaultState: 1
RuleName: MSN Messenger RTP connection
Protocol: UDP
LocalPort: 5004-65535
AllowIt

※これ以外に認証用にHTTP,HTTPSを許可。