title: handling webclient cookies with C#
body: <p>I have this code:</p>
  
  <pre><code>           string session = "SomeSessionCode";
             WebClient wac = new WebClient();
             wac.Headers["Cookie"] = "pu=1; pk=; sid="+session;
             wac.DownloadFile(url, filepathname);
  </code></pre>
  
  <p>is it correct to use Cookie header like this or i'm doing something wrong?</p>
  
  <p>thanks</p>