[udaaff]

Загрузка в прелоадере:

Security.allowDomain("*"); 
 
// ***
 
var loader:Loader = new Loader();
loader.contentLoaderInfo.addEventListener(Event.COMPLETE, loaderInfo_completeHandler);
var loaderContext:LoaderContext = new LoaderContext(false, ApplicationDomain.currentDomain);
loaderContext.securityDomain = SecurityDomain.currentDomain;
var request:URLRequest = new URLRequest("адрес вашего swf");
 
loader.load(request, loaderContext);