title: PHP script stops execution after some time on iis 8
body: <p>I am running a PHP script on iis 8. I've set max_execution_time to 0 using <code>ini_set("max_execution_time", 0);</code> set <code>memory_limit</code> to '-1' using <code>ini_set('memory_limit', '-1');</code> and 15 minute limit for FastCGI. At above 1 minutes that would be returning 500 Internal server error.</p>
  
  <p>This is on a windows 2012 R2 server using PHP Version 5.6.</p>
  
  <p>Anyone have any ideas why this keeps ending after 1 minutes even when I specifically set it for a longer period?</p>