Performance interface system includes a motion detector provided for movement with a performer, and a control system for receiving detection data transmitted from the motion detector and controlling a performance of a tone in response to the received detection data. The phasor data is referenced to a common timing signal. A first aperture, a second aperture and a bypass orifice are spaced longitudinally along the pin and extend there through opening into the bore. The interface routine may also display the multiple input output curves associated with the optimizer and the controller sections of the integrated function block in a manner that provides ease of view and selection of these curves as part of the algorithm used by the integrated function block. The method comprises the steps of:a) registering the application in the agent by associating a reference of the application with a value of an element of the message header,b) when the message is received from the server machine, forwarding part of the message to the application if the message header contains an element having the value associated to the reference of the application. Based on the performance of that external message transfer agent, the passage of time and the number of connections, its assigned connection limit may be increased so that progressively trust is increased and more message connections and a higher number of messages delivered may be permitted.