Using IFrames in Flex 4

We presently have one big swf in flex 4. I would like to embed an IFrame in it. I've found some info on doing it in flex 3 but am hoping for some direction on where to start for flex 4. Any links would be very helpful. Thanks

EDIT: I found this one http://code.google.com/p/f开发者_开发问答lex-iframe/ Which I'll be checking out but I am very open to suggestions and/or warnings!

EDIT2: Sorry, I'm dumb... I meant flex 4!

EDIT3: Seems like the dominant way is to generate an iframe on the page then have the divs make the iframe look like it's part of the flash app.

From our research it simply isn't possible to literally embed an iframe into a flex app.

Instead we used some javascript to overlay an iframe (actually, a fancybox) precisely where we want over the swf. This gives the user the illusion that the iframe is embedded.

There are actually a few commercial products that do exactly this as well.