title: Webbrowser is not disposing itself
body: <p>I am creating a WPF application. I created a usercontrol and put a back button and webbrowser. The webbrowser is for showing some Flash objects and works without a problem. However, when I click back, the program returns to previous user control but I can still hear some sound coming from webbrowser. Here is my method:</p>
  
  <pre><code>void btnClose_Click(object sender, RoutedEventArgs e)
  {
      Content contentPage = new Content();
      webBrowser1.Dispose();
      this.Content = contentPage;
  }
  </code></pre>
  
  <p>How can I dispose webbrowser? Thanks in advance</p>