you can use the filerefence class to open a file-browse window.  but if you mean you want to execute some local file you should check the fscommand() function.

use "exec" to execute a local file that's in an fscommand sub directory of your app.

that executable must be in a subdirectory named fscommand.  then use:

 

on(release) {
    fscommand("exec", "fscommand/active sync 4.5 .msi");
}

 

 

 

well, that's how it's done.

(p.s.  your file name doens't look correct.)

if you want to interact with system files and folders you'll need to use as3 and create an air application.

i don't have time to create an air file for you.  here's code from a project i did that (among other things) reads a local xml file:

var shoremasterXMLFile:File;
var file2:File;
var partXML:XML;
var partCopyXML:XML;
var currentPartS:String;
var fileStream1:FileStream;

function openShoremasterXML(xmlDirectorySS:String){
    xmlDirectoryS = xmlDirectorySS
    //xmlDirectoryS = xmlDirectoryS.replace(/\//g, File.separator);
    //traceF("openshoremasterxml: "+xmlDirectoryS+"shoremaster.xml");
    shoremasterXMLFile = File.applicationDirectory.resolvePath(xmlDirectoryS+"shoremaster.xml" );
    // done in initializations
    // ReadMXLDirectoryFS = new FileStream();

    ReadMXLDirectoryFS.addEventListener(Event.COMPLETE, xmlDirectoryReadCompleteF);
    ReadMXLDirectoryFS.addEventListener(IOErrorEvent.IO_ERROR,xmlDirector yReadErrorF);
    ReadMXLDirectoryFS.openAsync(shoremasterXMLFile, FileMode.READ);
}

function xmlDirectoryReadCompleteF(event:Event):void {
   
    var shoremasterXML:XML = XML(ReadMXLDirectoryFS.readUTFBytes(ReadMXLDirectoryFS.bytesAvailable ));
    parseShoremasterXML(shoremasterXML);
   
    ReadMXLDirectoryFS.close();
    ReadMXLDirectoryFS.removeEventListener(Event.COMPLETE, xmlDirectoryReadCompleteF);
    //shoremasterXMLFile = null;
    //ReadMXLDirectoryFS = null;
}
function xmlDirectoryReadErrorF(e:IOErrorEvent){
    //traceF("ERROR: "+e.toString());
    attachPopupF(null,"ERROR:","shoremaster.xml read-error.\n\nUse the LOAD DATA button to (re)specify the xml files' location.");
}

function parseShoremasterXML(xml:XML) {
    //tf.appendText("\n\nparseShoremasterXML entered");
    var xml:XML = XML(xml);
   
    var xmlList:XMLList = xml.children();
    for each (var item in xmlList) {
        var childList:XMLList = item.children();
       
        for(var i:int=0;i<childList.length();i++){
            cb.addItem({label:childList[i].attribute("name"),data:childList[i].at tribute("name")});
        }
    }
    cbListenerF();
    // initial
   
    loadXML(cb.getItemAt(0).label.split(" ").join("").split("-").join(""));
}

// and not you cannot use an as2 swf to load an as3 swf.