3.1.5.3.4 Rules for the wxf:CommandResponse Message

The server sends a wxf:CommandResponse message ([MS-WSMV] section 3.1.4.11) upon successful processing of wxf:Command (section 3.1.5.3.3). The client stores the value specified in the CommandId element of the wxf:CommandResponse message for future reference (see section 3.1.1.3.4). The client MUST use this CommandId for future communication with the pipeline, that is, wxf:Signal (section 3.1.5.3.9), wxf:Send (section 3.1.5.3.5), and wxf:Receive (section 3.1.5.3.7).