title: Get UserAgent for user's default browser
body: <p>I'm making an application that contains a <code>WebBrowser</code> element and I would like to have the application show the useragent for that user's default browser. </p>
  
  <p>I know how to get both the default browser via Registry keys and how to get the user agent for a browser but cannot figure out how to combine the two. Is this possible?</p>