Well yes:
Put this in your ConnectionRequest event:
code:
If Winsock.RemoteIP <> Winsock.LocalIP Then 'This will allow you only you to connect
Winsock.Close 'Close the connection
Winsock.Listen 'Start waiting for connections again.
Else 'Else
Winsock.Close
Winsock.Accept RequestID
Hope it helps