Render HTML in FLEX

Well, simply put, you cant' have full HTML inside a Flash App without Air.

But there are nice tricks around this, and you don't have to use IFrames.

In the html file that hosts your Flash/Flex app you have to create a DIV that will be in absolute position and will be Above (in Z order) the Flash app.  Then it's just a matter of alingning things, you might have to do some trial and error with different browsers.

And YES you can control the output of the div from you Flex/Flash app.

you will probably need a little javascript on the html side to receive the data from the flex app and from the flex app you need to call ExternalInterface.

Example:

Flex app:

     if (ExternalInterface.available)
       {
          ExternalInterface.call("UpdateMyDiv","MyDiv","Hello World");                                    
       }

From the javascript side (in the html):

     <script type="text/javascript">

     function UpdateMyDiv(divName,message)
      {
         if (document.getElementById)
           { // DOM3 = IE5, NS6
            document.getElementById(divName).innerHTML = message;
           }
      }

Be aware that that Javascript won't work on older browsers, but that's a browser thing.

I believe you can see this concept implemented in www.runpee.com  where he has google adds as html inside a Flex 4 app.  From browsing the source of the web page I deduced that's how he did it.

Me too!