Flash Player on IE fails to take CTRL + keyCode

/**
 * Copyright 9re ( http://wonderfl.net/user/9re )
 * MIT License ( http://www.opensource.org/licenses/mit-license.php )
 * Downloaded from: http://wonderfl.net/c/4dfy
 */

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml">
	<mx:Script>
		<![CDATA[
		// flash player on ie cannot take ctrl + keycode
		// the default short cut key events of ie 
		// seem to rob the flash player of key focus
		// check if you can take ctrl + Z, for example
		//
		// ieのflash playerでコントロール系のキーが取れない
		// ieのデフォルトのショートカットキーイベントが
		// どうもFlash Playerから
		// キーフォーカスを奪ってしまうみたい
		// ctrl + Zが取れるかどうか試してみると分かります
		
		import flash.events.KeyboardEvent;
		
		private function onKeyDown(e:KeyboardEvent):void {
			log.text = "KeyDown: " + ((e.ctrlKey) ? "Ctrl + " : "") + ((e.altKey) ? "Alt + " : "") + ((e.shiftKey) ? "Shft + " : "") + String.fromCharCode(e.keyCode) + "(code: " + e.keyCode + ")";
		}
		
		private function onKeyUp(e:KeyboardEvent):void {
			log.text = "KeyUp: " + ((e.ctrlKey) ? "Ctrl + " : "") + ((e.altKey) ? "Alt + " : "") + ((e.shiftKey) ? "Shft + " : "") + String.fromCharCode(e.keyCode) + "(code: " + e.keyCode + ")";
		}
		]]>
	</mx:Script>
	<mx:TextArea id="main" width="100%" height="80%" keyDown="onKeyDown(event);" keyUp="onKeyUp(event);"/>
	<mx:Text id="log" />
</mx:Application>