Unzip Doesnt work...

[Corey]

i have added the unzip command to the fileexplorer but it will not extract the files .. here is the code i am using.

function OnGridContextItemClicked(oGridMenu, args) {
           var menuItemText = args.get_item().get_text();
           if (menuItemText == "UnZip") {// 'UnZip' command
               var oExplorer = $find("<%= rfeStorage.ClientID %>");
               var oAjaxPanel = $find("<%= RadAjaxPanel1.ClientID %>");

               var selectedItem = oExplorer.get_selectedItem();
               if (selectedItem.get_extension() == "zip") {
                   //var itemExt = ; // get the extension of the current item

                   var itemPath = selectedItem.get_path(); // get the path of the current item
                   oAjaxPanel.ajaxRequest(itemPath); // Call the RadAjaxPanel1_AjaxRequest function on the server ;


               }
               else {
                   alert("Please, select a ZIP file");
               }
           }
       }
       //]]>
   </script>

   RadMenuItem item = new RadMenuItem("UnZip");
                item.PostBack = false;
                item.Value = "CustomValue";

                rfeStorage.GridContextMenu.Items.Add(item);
                rfeStorage.GridContextMenu.OnClientItemClicked = "OnGridContextItemClicked";
}

   protected void RadAjaxPanel1_AjaxRequest(object sender, AjaxRequestEventArgs e)
        {
            string path = e.Argument;
            LblAjaxPanel.Text = path;
        }

Please write me back asap. Thanks in advance
*revision*
I realized i dont have the function for the unzipping process can someone help me with that! please!