title: My Windows Forms Application is still running as task after closing
body: <p>I have build a C# Windows Forms Application with Visual Studio 2010.</p>
  
  <p>Run and close application is done successfully within a short time.
  The process is not running in Task-Manager. As well the debugging process close. No problem occurs.</p>
  
  <p>But if the Application is running a while the program does not close and still leave running in Task-Manager
  (I just open the apllication and do nothing else, just wait few hours to reproduce the problem).
  In Debug mode i have to click on STOP DEBUGGING button to end process.</p>
  
  <p>What can i do to find the rootcause?</p>