title: How to end task in batch?
body: <p>How to end/stop a task/programm
  in batch-files quickly ?</p>
  
  <p>If it's possible to stop all programms with one command please say it to me.</p>
  
  <p>I tried<code>taskkill firefox</code>
  But it doesnt work</p>
  
  <p>Thank you for answers ; )</p>