Flash player 11.6.602.168 fails to identify installed air application. How this should be fixed?

Question

Ours is simple application with flash loaded on web identifies air application installed or not. If installed, files will be downloaded through air application.
Action script code uses http://airdownload.adobe.com/air/browserapi/air.swf to idetify air app installed or not clients desktop
Today upgraged to 11.6.602.168 flash player, _air.getApplicationVersion(appId, pubId, versionDetectCallback) version detect callback always returns null.
How this should be fixed

Answer 1

Os windows 7, Firefox 19 and Safari 5.0 fails to work.
Chrome 24 works fine
Here is the code snippet
public function LaunchAirApplication()
                              var _loader:Loader = new Loader();
                              var loaderContext:LoaderContext = new LoaderContext();
                              loaderContext.applicationDomain = ApplicationDomain.currentDomain;
                              _loader.contentLoaderInfo.addEventListener(Event.INIT, onInit);
                              _loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
                              _loader.contentLoaderInfo.addEventListener(Event.COMPLETE, onComplete);
                              _loader.load(new URLRequest("http://airdownload.adobe.com/air/browserapi/air.swf"), loaderContext);
                     * This function identifies air after loading from standard site and gets application version
                     * @param - event: Event object
                    private function  onInit(event:Event):void{
                              _air = event.target.content;
                              if (_air.getStatus() == 'installed'){
                                        _air.getApplicationVersion(appId, pubId, versionDetectCallback);
                              else{
                                        ExternalInterface.call("airAppInstalled", 0, null);
                     * This function detects air app is already installed or not
                     * @param - version: version of air app
                    private function versionDetectCallback(version:String):void{
                              if (version==null){
                                        ExternalInterface.call("airAppInstalled", 0, version);
                              else{
                                        ExternalInterface.call("airAppInstalled", 1, version);
                    private function onComplete(event:Event):void{
I will report the bug in bugbase.adobe.com. A quick help is appreciated as our customers are affected because of this.