HTMLREQUESTS

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.rotop100.com/vote/1243/");
request.Headers.Add("Cookie: PHPSESSID=16b52d037d8c39d0764a17d62586e9a3");
request.GetResponse().Close();

HttpWebRequest request2 = (HttpWebRequest)WebRequest.Create("http://www.rotop100.com/scripts/lol_internet.php");
request2.Headers.Add("Cookie: PHPSESSID=16b52d037d8c39d0764a17d62586e9a3");
using (StreamReader reader = new StreamReader(request2.GetResponse().GetResponseStream()))
{
Console.WriteLine(reader.ReadToEnd().Length);
}