title: Launch a URL in a tab in an existing IE window from C#
body: <p>The following code opens a link in an existing browser window when browserExe is pointing to Firefox, Safari or Chrome. When pointing to IEXPLORE.EXE (IE7) a new windows is opened.</p>
  
  <pre><code>ProcessStartInfo pi = new ProcessStartInfo(browserExe, url);
  Process.Start(pi);
  </code></pre>
  
  <p>This opens a tab in an existing window as intended, when IE is the default browser.</p>
  
  <pre><code>ProcessStartInfo pi = new ProcessStartInfo(url);
  Process.Start(pi);
  </code></pre>
  
  <p>How to i reuse an existing IE windows, when IE is NOT the default browser?</p>