[etc]

This event is intended primarily for use with a server, such as Flash Media Server; for more information, see the class description. It is not part of the Flash Player API, but is included in this language reference for your convenience. You cannot use the addEventListener() method, or any other EventDispatcher methods, to listen for or process this event. Rather, you must define a single callback function and attach it directly to one of the following objects: …

Дочитать надо