title: ImmersiveFocusNotification Message hangs the application
body: <p>I have a couple of application both are built in <strong>Visual studio 2015</strong>, One works fine but other hangs, when tried with <strong>SPY++</strong> came to know that behavior changes after system message:</p>
  
  <blockquote>
    <p>ImmersiveFocusNotification</p>
  </blockquote>