NTSTATUS LpcRequestPort( IN PVOID PortAddress, IN PPORT_MESSAGE RequestMessage ); Routine Description: This procedure is similar to NtRequestPort but without the Handle based interface. Arguments: PortAddress - Supplies a pointer to the communication port to send the request message to. RequestMessage - Specifies a pointer to the request message. The Type field of the message is set to LPC_DATAGRAM by the service. Return Value: NTSTATUS - A status code that indicates whether or not the operation was successful.