How to track application exit event?

I have my swf embeded in Asp.Net. I want to track application exit event. Is there any event which is called when flex application exists or unload or destroyed? I tried application close event but it is not working. I do not want events of browser close or etc because I already tried it.
Thanks,
-Chandu

if you wanted to just close the window all together you could write some Javascript to close the window, then in your flex app call the function when they click the logout button
If you want to actually end it with Actionscript you could try:
public function applicationExit():void {  
     var exitingEvent:Event = new Event(Event.EXITING, false, true);  
     NativeApplication.nativeApplication.dispatchEvent(exitingEvent);  
     if (!exitingEvent.isDefaultPrevented()) {      
          NativeApplication.nativeApplication.exit(); 
Source: http://livedocs.adobe.com/flex/3/html/help.html?content=app_launch_1.html
UKB

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