Adobe Flash/Air allows splitting application into smaller pieces in the form of SWF files. Later additional SWFs can be downloaded and loaded into the main application as documented here: https://helpx.adobe.com/flash/kb/load-external-swf-swf.html I searched if there is the same or similar concept in other languages/technologies but with no success.While this idea doesn't seem any good from the security point of view, I would like to ask. Do you know any example of such concept in different from Flash and ActionScript languages or technologies?