<?php 
include_once("./header.php");
$attachment = Attachment::getByID($attach_id);
$file_path = XOOPS_ROOT_PATH."/modules/devtracker/cache/".$attachment->cache_file;
header("Content-type: application/x-zip-compressed;");
header("Content-Disposition: attachment; filename=".$attachment->real_name);
readfile($file_path);
?>