First of all I don’t really use flex to do flex stuff and I’m not a big fan of flex. But in my latest project I had to build with flex an interface witch would be always diferent (a dynamic interface). In the beginning we thought in parsing some type of XML, but if we are in flex why not parse MXML? I took a look over the internet and I only found MXMLLoader component v0.01, witch didn’t compile on flex builder 3 and was really in the beginning. So there it is, as XMMLLoader class for flex builder 3. You just have to instantiate the class with the mxml :

You can access objects by name:

Or by id:

And have access to component events like:

The class with an example:

mxml-loader.zip

Example swf

Loading the swf is easy; you can make a normal loader and load it. And now the tricky part, if the swf is a swf flash file you can call the function you want, but in flex, because it have 2 frames, (first frame is just for loading), you need to wait until frame 2 is available, you can’t also access directly to a swf, you have to refer application before, so there’s the code:

you can also add Event Listener's to myClip.application , like myClip.addEventLIstener(“ON_CHANGE”,function), so by this way you can embed flex swf into an flash application and communicate with him by calling function and receiving events.