Detect MSIE running, include Trident and perform specific code.

gistfile1.txt

add_filter( 'ssp_episode_meta_details', 'ssp_remove_download_links', 10, 3 );
function ssp_remove_download_links ( $meta, $episode_id, $context ) {
	$agent=strtoupper($_SERVER['HTTP_USER_AGENT']);
	if ( strpos($agent,'MSIE') !== false || strpos($agent,'TRIDENT')!== false ) {
		// Someone is STILL using IE. Don't show the downlolad links since they won't work in SSP. 
		/* IE specific code here */
    return /*filtered result*/;
	}
  return $meta;
}
/* Ref: https://stackoverflow.com/questions/5302302/php-if-internet-explorer-6-7-8-or-9 */