Download file from serverq

Message # 1 | 3:31 PM 2012-06-21

I try to get file programmatically from server using c# winforms. First I checking if file is there but when I make httpwebrequest using HEAD method it's return me "The remote server returned an error 403 (Forbidden)"... The downloaded file is 0kb. Any help?

Here is the code if you need it.

Code

private bool RemoteFileExists(string url)
{
      try
      {
            HttpWebRequest request = WebRequest.Create(url) as HttpWebRequest;
            request.Method = "HEAD";
            HttpWebResponse response = request.GetResponse() as HttpWebResponse;
            return (response.StatusCode == HttpStatusCode.OK);
      }
      catch (Exception ex)
      {
            MessageBox.Show(ex.ToString());
            return false;
      }
}

private void Form1_Load(object sender, EventArgs e)
         {
             if (RemoteFileExists("http://xoemab.ucoz.ru/ConvertToUTF-8/setup.rar") == true)
             {
                 WebClient webClient = new WebClient();
                 webClient.DownloadFileCompleted += new AsyncCompletedEventHandler(Completed);
                 webClient.DownloadProgressChanged += new DownloadProgressChangedEventHandler(ProgressChanged);
                 webClient.DownloadFileAsync(new Uri("http://xoemab.ucoz.ru/ConvertToUTF-8/setup.rar"), @"C:\Users\Almis\Desktop\setup.rar");
             }
             else
             {
                 MessageBox.Show("You have already the latest version.");
             }
         }