package {
    import flash.html.HTMLHost;
    import flash.html.HTMLLoader;
    import flash.html.HTMLWindowCreateOptions;
    import flash.display.NativeWindow;
    import flash.display.NativeWindowInitOptions;
    import flash.display.StageScaleMode;
    import flash.display.StageAlign;

    public class CustomHost extends HTMLHost {
     
        public function CustomHost() {
            super();
        }
       
        override public function createWindow(windowCreateOptions:HTMLWindowCreateOptions):HTMLLoader {
			
            var options:NativeWindowInitOptions = new NativeWindowInitOptions();			
            var window:NativeWindow = new NativeWindow(options);
            window.visible = true;
			
            var htmlLoader:HTMLLoader = new HTMLLoader();
            htmlLoader.width = window.width;
            htmlLoader.height = window.height;
            window.stage.scaleMode = StageScaleMode.NO_SCALE;
	    window.stage.align = StageAlign.TOP_LEFT;
            window.stage.addChild(htmlLoader);
            return htmlLoader;
        }
    }
}

function makeBrowser() {
	var htmlLoader:HTMLLoader=new HTMLLoader;
	htmlLoader.width=stage.stageWidth;
	htmlLoader.height=stage.stageHeight;

	addChild( htmlLoader );
	htmlLoader.stage.nativeWindow.activate();
	htmlLoader.load( new URLRequest("testBlank.html") );

	var host:CustomHost = new CustomHost();
	htmlLoader.htmlHost=host;
}
makeBrowser();

package {
	
	import flash.display.Sprite;
	import flash.html.HTMLLoader;
	import flash.net.URLRequest;

	public class Main extends Sprite {

		public function Main() {
			var htmlLoader:HTMLLoader=new HTMLLoader  ;
			trace(stage)	// [object Stage]
			htmlLoader.width=stage.stageWidth;
			htmlLoader.height=stage.stageHeight;

			addChild( htmlLoader );
			htmlLoader.stage.nativeWindow.activate();
			htmlLoader.load( new URLRequest("testBlank.html") );

			var host:CustomHost = new CustomHost();
			htmlLoader.htmlHost=host;
		}

	}
}