title: Temp-Files in Symfony-Cache folder
body: <p>I'm using Windows on some production machines (IIS with FastCGI-PHP). Since the update of one SF-Project to 1.3.x I notice some strange problems. The Server is "collecting" Temp-Files in the config-cache folder of the applications. They are named like con1718.tmp and always containing the autoload-config-cache. The tmp-files are not generated for every request but I have 1 or 2 new files every half an hour or so. If the application is running some days/months there are a lot of these Temp-Files (Megabytes of them).</p>
  
  <p>Machine-Details: - Windows Server 2008 - IIS 7 - ZendServer? with PHP 5.2.11</p>
  
  <p>Project with SF 1.3.3</p>
  
  <p>Any ideas what the problem can be?</p>