Browser cache ignore no longer works after windows update

Question

Just thought I'd share that after the windows update I did
this week, the browser cache blocking trick described in many
places where you put ?r=<randomnumber> at the end of a URL no
longer works. Not exactly sure what happened, but it now causes a
URL not found error, at least for me when I'm loading local files
off my disk.
This thread talks about the cache blocking trick:
http://www.adobe.com/cfusion/webforums/forum/messageview.cfm?forumid=15&catid=665&threadid =1357763&highlight_key=y&keyword1=cache

Answer 1

Here's a technique I use. In a php file:
header("Expires: Mon, 20 Jul 1997 05:00:00 GMT");
header("Cache-Control: no-store, no-cache, must-revalidate");
header("Cache-Control: post-check=0, pre-check=0", FALSE);
header("Pragma: no-cache");
This must be wrapped in php tags.