title: Powershell open window (from Java.Runtime.exec)
body: <p>simple Question: </p>
  
  <p>i want to call the powershell with some commands from java. But the Problem is that no Window appears. i want that the window with the Powershell appears.</p>
  
  <pre><code>String[] str= {
  "powershell.exe", "-NoExit", "-Command", "echo", "hallo"
  }
  
  [...]
  
  Runtime.getRuntime().exec(str);
  
  [...]
  </code></pre>