I have two web applications written in Flex I would like to integrate. I would like one Flex app (let's call it application A) to invoke second Flex app (let's call it application B). Application A has access only to swf file of application B (not source code). When application A invokes application B, it should be able to pass some data to application B. After application B is invoked it should be able to pass some data back to application A. These two applications will be hosted on the same server, but will use different server code.
The easiest way of implementing this (or one of the ways to be more precise) would be to have UI element on app A (button, link, menu item, etc) that would invoke app B. But in that case, two Flex applications couldn't communicate directly (since only one is active at a time), and they would have to communicate through server code, which is something I would like to avoid.
In short application A should invoke application B, pass some data to it. Application B should do it's work, display some content, and have a mean of passing some data back to application A.
I'm aware of LocalConnection, and I've seen similar question, but in that case I would have to have both application in the same browser window. This would be acceptable to some extend, but only if app B is contained in app A (not if they are both on the same HTML page). Would LocalConnection work in that case?
Do you have any recommendations on how to implement this kind of communication?