Port and Chat in Visual Basic

Private Sub cmdListen_Click()
'Setup the local port to connect to. You can put any port number.
Winsock.LocalPort = 4545
'Listen for incoming connections
Winsock.Listen
End Sub

Private Sub Winsock_ConnectionRequest(ByVal requestID As Long)
'Close a connection incase a previous one was opened.
Winsock.Close
'Accept the request
Winsock.Accept requestID
'If connection is made, Tell user
If Winsock.State = sckConnected Then
lstShow.AddItem "Connection Made"
Else
msgbox "No Connection Made",,"Error"
End If	
End Sub

Private Sub cmdConnect_Click()
Dim IP as Integer
'Get the Computer to connect to
IP = txtConnect.text
'Close Previous Connection
Winsock.Close
'Connect to Computer Using the IP and Port (Port must be the same as the Listening Winsock)
Winsock.Connect IP, 4545
'If connection is made, Tell user
If Winsock.State = sckConnected Then
lstShow.AddItem "Connection Made"
Else
msgbox "No Connection Made",,"Error"
End If	
End Sub

Private Sub cmdSend_Click()
Dim Data as String
'Get the data to send
Data = txtSend.text
'Append your hostname so they know who sent it
Data = Winsock.LocalHost & ": " & Data
'Send your data
Winsock.SendData Data
'Display the Data for yourself
lstShow.AddItem Data
End Sub

Private Sub Winsock_DataArrival(ByVal bytesTotal As Long)
Dim Data as String
'Get the data sent to the winsock and put it in the Variable "Data"
Winsock.GetData Data
'Display the data
lstShow.AddItem Data
End Sub