title: Get rid of XAML Window from Taskbar
body: <p>If I have a XAML window that I show with ShowDialog, is there a way to make it (not) appear in the taskbar?</p>
  
  <p>The problem is that I can set the window to be topmost but if that window opens another dialog and I set that also to be topmost, I can put the second behind the first by clicking in the taskbar.  This tends to confuse users.</p>