How can I open a local folder using flash builder or AS3?

Question

I need to open a local folder get the zip file and unzip it.
I know that i cannot open a folder using flash builder, i did it using air app. now i do not know how do i integrate it with my flex program.
Please help me with this issue.
Thanks

Answer 1

<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
<mx:Script source="Asset/folder.as" />
<mx:Button x="10" y="10" label="My Button" width="122" height="31" id="myButton" click="folder()"/>
<mx:ComboBox x="10" y="49" id="cbobx" dataProvider="{}"  ></mx:ComboBox>
</mx:Application>
and .as code is:
// ActionScript file
import flash.display.*;
import flash.events.*;
import flash.net.FileFilter;
import flash.net.FileReference;
import flash.net.FileReferenceList;
import mx.controls.Alert;
import mx.controls.ComboBox;
private var fr:FileReferenceList;
private var cmbobx:ComboBox = new ComboBox();
    private function folder():void
fr = new FileReferenceList();
fr.browse([new FileFilter("Zip Files", "*.zip")]);
fr.addEventListener(Event.SELECT, listZipFiles);
private function listZipFiles(e:Event):void
Alert.show("selectHandler: " + fr.fileList.length + " files");
        var fls:Array = new Array();
        var file:FileReference;
        for (var i:uint = 0; i < fr.fileList.length; i++)
            file = FileReference(fr.fileList[i]);
            //Alert.show("File Name: " + fr.fileList[i]);
            Alert.show("File Name: " + file.name);
            fls.push(file);
            cmbobx.selectedItem = fls;
private function getShpFiles(event:MouseEvent):void