A Detailed Guide to the AIR Application Descriptor File
The AIR application descriptor file is an XML file that sets the basic properties of an AIR application. When developing with FLEX, it lives at “project folder/src/main file name-app.xml”; when developing with Flash CS3 it is also generated automatically when you create an AIR project, and you can edit it visually through the menu Commands > AIR - Application and Installer Settings, or edit the XML document by hand. The application descriptor file contains the properties of the AIR application and affects the whole application — its name, version, copyright, and so on. In theory, the application descriptor file can use any file name. When we create an empty file with Flash CS3 and use the default settings, the descriptor file is automatically renamed application.xml and placed in a special directory of the AIR project.