Getting the main application directory in Adobe AIR

<?xml version="1.0" encoding="utf-8"?>
<!-- http://airexamples.com/2008/12/12/getting-the-main-application-directory-in-adobe-air/ -->
<mx:WindowedApplication name="File_applicationDirectory_test"
        xmlns:mx="http://www.adobe.com/2006/mxml"
        layout="vertical"
        verticalAlign="middle"
        backgroundColor="white"
        styleName="plain"
        showStatusBar="false"
        initialize="init();">
 
    <mx:Script>
        <![CDATA[
            import mx.utils.ObjectUtil;
        ]]>
    </mx:Script>
 
    <mx:Form width="100%" height="100%">
        <mx:FormItem label="File.applicationDirectory:" width="100%" height="100%">
            <mx:TextArea id="textArea"
                    text="{ObjectUtil.toString(File.applicationDirectory)}" 
                    editable="false" 
                    width="100%" 
                    height="100%" />
        </mx:FormItem>
    </mx:Form>
 
</mx:WindowedApplication>