3.2.4.3 Application Signaling that Method Calls Are Complete
When the higher-layer protocol or application signals that no more method calls are coming (for example, by destroying the proxy object), the COMQC client MUST convert all entries in the list of pending calls into a message conforming to the format defined in section 2.2, open a connection to the server's message queue, send the message to the message queue, and close the connection to the message queue. If the list of pending calls is empty, an MSMQ message MUST NOT be sent.
An implementation MAY provide feedback to the higher-layer protocol or application when a message queue transfer succeeds or fails, but if or how this is done is outside of the scope of this protocol.