IN  PDEVICE_OBJECT   DeviceObject,
  IN  PIRP             pIrp,
  IN  PVOID            pContext

Routine Description:

    This routine handles the completion of a TCP session setup.  The TCP
    connection is either setup or not depending on the status returned here.
    It must called the clients completion routine (in udpsend.c).  Which should
    look after sending the NetBios sesion startup pdu across the TCP connection.

    The pContext value is actually one of NBTs irps that is JUST used to store
    the calling routines completion routine.  The real Irp used is the original
    client's irp.  This is done so that IoCancelIrp will cancel the connect


Return Value:

    NTSTATUS - success or not