public static extern uint McastReleaseAddress(ushort AddrFamily, [In] ref MCAST_CLIENT_UID pRequestID, [In] ref MCAST_LEASE_REQUEST pReleaseRequest);
public static extern uint McastRenewAddress(ushort AddrFamily, [In] ref MCAST_CLIENT_UID pRequestID, [In] ref MCAST_LEASE_REQUEST pRenewRequest, ref MCAST_LEASE_RESPONSE pRenewResponse);
public static extern uint McastGenUID([In] ref MCAST_CLIENT_UID pRequestID);