$filedir = "/export/home/httpd/html/soundlab/widget/soundlabplayer/air/";
$filename = "soundlab.air";
$filesize = filesize($filedir.$filename);
header("Content-Type: {application/vnd.adobe.air-application-installer-package+zip}");
header('Content-Disposition: attachment; filename="'.$filename.'"');
XXXXXXXX($filedir.$filename);
?>