... and I thought I was done with that issue :)... It just popped back again today during development.
Let me recap what happened : I have a shell application, that loads at runtime other swfs that contain classes which all extend and implement the same superclass and interface. So far, everything's ok. Now, I need some of these classes (that are in the loaded swf) to load external data, such as other swfs, images, videos etc. The loaded swf is local, but the external data is, well, external (i.e. on another server, domain, etc)... Which, as you might guess, make me run into a sandbox violation issue (error #2028 : local swf can't load stuff from http://...) Since I'm in development and working with local files, I can't seem to set the securitydomain of the loaded swf's via LoaderContext (error #2142)... So I thought ok, nevermind, I'll temporarily allow the local files inside my development folder to access remote data. That solves the sandbox issue, but, to my surprise, it made my old inheritance issue pop up at the surface again... So... I'm pretty much clueless here... How would one solve this, and have an application loading local swf files containing shared classes (via LoaderContext.applicationDomain), that in turn load external swfs? thanks a lot for any help, terribly appreciated !:) cheers, J.