Instead of using AS3 dynamic Class for assigning dynamic properties to the DisplayObject, the below line is best alternative:
DisplayObject['property']= value
Using this i am working on mxml parser, planning for swf generator from AIR
To do this, you need to include the keyword “dynamic” as part of your class declaration, e.g., public dynamic class Foo. Then to make the call, just say:
var functionName:String = “foo” + bar;
if (this.hasOwnProperty(functionName))
this[functionName]();
reference
click here to see the code for loading anykind of swf files inside swf generated using Flash CS3, with Seamless effort. This example AS loads ‘1.swf’ to ‘8.swf’. For which u can control with buttons prev_btn, next_btn to navigate among them. swfLoader_mc is the movieclip used to load them. preloader_mc with loadbar_mc and myText(txt) shows the loading.
click here to install an Application to check the passenger status for Indian Railway Ticket.
Click here to use the Adobe Share AIR package for latest AIR version (1.0), using Adobe Share API
Click here to check Flickr Photos Search, that loads my marriage photos by default 
var root_mc:Object = parent.parent.parent.parent.parent.parent.parent.parent
root_mc.functionNAME()
use the parent as per the level of components used, then u can refer the root_mc to control the objects or to call the functions of the root level elements.
