title: How to change permanently the user-agent on windows phone?
body: <p>I want to change the user-agent of my webbrowser control. I can do this:</p>
  
  <pre><code>webbrowserTest.Navigate(new Uri("http://mywebsite.com"), null, "User-Agent: myuseragent");
  </code></pre>
  
  <p>The problem is that the user agent will only be valid for one request and not for subrequest or redirections. How to change permanently this user agent ?</p>