"no-store" and "no-cache" = no files in browser"s cache ?

Hi! Am I assuming correctly that if you add this in the beginning of a PHP page that the browser will not store files for that page to its cache? <?php header('Cache-Control: no-store, no-cache, must-revalidate'); // HTTP/1.1 header('Cache-Control: post-check=0, pre-check=0'); // damnable IE5 header('Expires: Wed, 16 Nov 1977 10:00:00 CET'); // date in past header('Last-Modified: '.date('r')); // right -now- header('Pragma: no-cache'); // HTTP/1.0 ?> I tried it, but the sensitive files I want to avoid from being available on the client's harddrive, still get downloaded and saved in the "Temporary Internet Files" for IE6. I also tried Mozilla, but I see changes in the cache as well. Comments would be greatly appreciated! Thx! Bart