Winsock Client connection erquest

Hii,

how can i restrict a client request which is already granted n connected with server

If client is requesting for a connection with server

Is there any way which then method

Winsock1_ConnectionRequest(Index As Integer, ByVal requestID As Long)

can check whether the connection request is new or already existing

REquestID is different at every request can tis be same from same client as it is auto or user specific

Hope problem statement is cleared