title: fulltrustprocesslauncher does not exist in current context
body: <p>I am trying to figure out how to execute a powershell script from my uwp desktop application. I think I am sort of going in the right direction but need a bit of help. I am getting "The name FullTrustProcessLauncher does not exist in the current context". I have checked the references and I have the Windows Desktop extensions for the UWP.</p>
  
  <p>Can someone help thanks</p>
  
  <p><strong>Mainpage.xaml</strong></p>
  
  <pre><code>   private async void doSomething(object sender, RoutedEventArgs e)
      {
          await  FullTrustProcessLauncher.LaunchFullTrustProcessForCurrentAppAsync();
      }
  </code></pre>
  
  <p><strong>package manifest</strong></p>
  
  <pre><code> &lt;Applications&gt;
  &lt;Application Id="App" Executable="$targetnametoken$.exe" EntryPoint="ProjectCuwp.App"&gt;
  &lt;Extensions
  xmlns:desktop="http://schemas.microsoft.com/appx/manifest/desktop/windows10"&gt;
  &lt;desktop:Extension
    Category="windows.fullTrustProcess"
    Executable="powershell.exe" /&gt;
  </code></pre>
  
  <p><br>
      
          
          
          
        
      
    </p>
  
  <p><strong>References installed:</strong>
  Windows Desktop Extensions for the UWP</p>