Adobe extends the features on Flash Player in the every version and some of the features modernize the web development works. In Flash Player 10, it allows to access the local content via Browser Dialog, At the same time, we can not access the local content by action script from Flash Player without the knowledge of user, so its pretty secure. Usually, in order to load/display a image file (jpg or png) from local computer to Flash Player, we had to load that file to server, and then we need to download it from the server over HTTP to load into the Flash Player. Its pretty unnecessary process for just display a image into Flash Player.