The LocalConnection class enables communications between AIR applications, as well as among AIR applications and SWF content running in the browser.

The connect() method of the LocalConnection class uses a connectionName parameter to identify applications. In content running in the AIR application security sandbox (content installed with the AIR application), AIR uses the string app# followed by the application ID followed by a dot (.) character, followed by the publisher ID for the AIR application (defined in the application descriptor file) in place of the domain used by SWF content running in the browser. For example a connectionName for an application with the application ID com.example.air.MyApp, the connectionName and the publisher ID B146A943FBD637B68C334022D304CEA226D129B4 resolves to "app#com.example.air.MyApp:connectionName.B146A943FBD637B68C334022D304CEA226D129B4". (For more information, see Defining the basic application information and Getting the application and publisher identifiers.)