Проблема с getdefinition

[Nikto]

Флешка точно загрузилась, т.к. в прелоадере это проверяется.
Ставлю

Security.allowDomain("*");

В Loader передаю такой LoaderContext

var lc: LoaderContext = new LoaderContext();
       lc.securityDomain = SecurityDomain.currentDomain;

Вот весь код прелоадера:

public class Preloader extends MovieClip 
	{
		private var z1: DisplayObject;
		private var z4: DisplayObject;
		private var z5: DisplayObject;
 
		public static const vstupr: String = "http://app.vk.com/c6121/u148888832/ec2e18914be11b.swf";
		public static const menuch: String = "http://app.vk.com/c6119/u148888832/8c54d02ce667d4.swf";
 
		public static var MenuChange: Loader;
		public static var VstupRolik: Loader;
 
		private var ml: int = 0;
		private var mt: int = 0;
		private var vl: int = 0;
		private var vt: int = 0;
 
		private var isdop: Boolean;
 
		public static var flashVars: Object;
 
		[Embed(source = "pictures/ZM/1Экран Фон.png")] public static var Zm1: Class;
		[Embed(source = "pictures/ZM/4Загрузка линии текст2.png")] public static var Zm4: Class;
		[Embed(source = "pictures/ZM/5Загрузка полная.png")] public static var Zm5: Class;
 
		public function Preloader() 
		{			
			if (stage) {
				stage.scaleMode = StageScaleMode.NO_SCALE;
				stage.align = StageAlign.TOP_LEFT;
			}
            flashVars = stage.loaderInfo.parameters as Object; 
 
			var obj: Object = JSON.parse(Preloader.flashVars.api_result);
			if (int(obj.response.IsRegister) == 0) isdop = true else isdop = false; 
			if (isdop == true)
			{
				MenuChange = new Loader();
				VstupRolik = new Loader();
				Security.allowDomain("*");
				var lc: LoaderContext = new LoaderContext();
				lc.securityDomain = SecurityDomain.currentDomain; 
				//lc.applicationDomain = ApplicationDomain.currentDomain;
				MenuChange.load(new URLRequest(menuch), lc);
				VstupRolik.load(new URLRequest(vstupr));
 
				MenuChange.addEventListener(ProgressEvent.PROGRESS, progressm);
			    VstupRolik.addEventListener(ProgressEvent.PROGRESS, progressv);
			}
 
			z1 = new Zm1();
			z4 = new Zm4();
			z5 = new Zm5();
 
			z4.alpha = 0;
			z5.alpha = 0;
 
			addChild(z1);
			addChild(z4);
			addChild(z5);
 
			addEventListener(Event.ENTER_FRAME, checkFrame);
			loaderInfo.addEventListener(ProgressEvent.PROGRESS, progress);
			loaderInfo.addEventListener(IOErrorEvent.IO_ERROR, ioError);
 
			// TODO show loader
		}
 
		private function ioError(e:IOErrorEvent):void 
		{
			trace(e.text);
		}
 
		private function progressm(e: ProgressEvent):void
		{
				ml = e.bytesLoaded;
				mt = e.bytesTotal;
		}
 
		private function progressv(e: ProgressEvent):void
		{
				vl = e.bytesLoaded;
				vt = e.bytesTotal;
		}
 
		private function progress(e:ProgressEvent):void 
		{			
			// TODO update loader
			if (((loaderInfo.bytesLoaded+ml+vl) / (loaderInfo.bytesTotal+mt+vt)) * 100 < 50) 
			{
				z4.alpha = ((((loaderInfo.bytesLoaded+ml+vl) / (loaderInfo.bytesTotal+mt+vt)) * 100) * 2) / 100;
			} else
			{
						//if ((loaderInfo.bytesLoaded / loaderInfo.bytesTotal) * 100 < 66)
				z5.alpha = ((((loaderInfo.bytesLoaded+ml+vl) / (loaderInfo.bytesTotal+mt+vt)) * 100 - 50) * 2) / 100;			
			}	
 
		}
 
		private function checkFrame(e:Event):void 
		{
			if ((currentFrame+ml+vl) == (totalFrames+mt+vt)) 
			{
				stop();
				loadingFinished();
			}
		}
 
		private function loadingFinished():void 
		{
			removeEventListener(Event.ENTER_FRAME, checkFrame);
			loaderInfo.removeEventListener(ProgressEvent.PROGRESS, progress);
			loaderInfo.removeEventListener(IOErrorEvent.IO_ERROR, ioError);
			if (isdop == true)
			{
				MenuChange.removeEventListener(ProgressEvent.PROGRESS, progressm);
				VstupRolik.removeEventListener(ProgressEvent.PROGRESS, progressv);
			}
 
			// TODO hide loader
 
			removeChild(z1);
			removeChild(z4);
			removeChild(z5);
 
			startup();
		}
 
		private function startup():void 
		{
			var mainClass:Class = getDefinitionByName("Main") as Class;
			addChild(new mainClass() as DisplayObject);
		}
 
	}