3.1.6.1 PCTX_RRSESSION_HANDLE_TYPE Rundown
This event occurs when a PCTX_RRSESSION_HANDLE_TYPE context handle has been established between a client and server through a call to RemoteQMOpenQueue, and the connection between the client and server is severed before the context handle is closed via a call to RemoteQMCloseQueue.
The server MUST use the context handle supplied as an event argument to RemoteQMCloseQueue to look up the context handle in the OpenSessionHandle table and close the OpenSessionHandle, as specified in RemoteQMCloseQueue.