[Mur4ik]

примерно так

import flash.net.URLLoader;
import flash.events.Event;
import flash.net.URLRequest;
 
var unique:Number = new Date().getTime();
var request:URLRequest = new URLRequest("file.html?unique=" + unique);
var urlLoader:URLLoader = new URLLoader();
urlLoader.addEventListener(Event.COMPLETE, data_loadCompleteHandler);
urlLoader.load( request );
function data_loadCompleteHandler(event:Event):void
{
	txtp.htmlText = String(event.target.data).split('\n\r').join('');
}