Is WebProxy class only support HTTP proxy type?

Question

Is there a way to use Socks4, Socks4a or Socks5 proxy types with WebProxy class. I have downloaded a Proxy Server "ccproxy" from http://www.youngzsoft.net/ccproxy/screenshot.htm where i can use my code to download and upload files but it works only with Port 808 reserved for HTTP proxy in ccproxy server. Http Get Code... WebClient client = new WebClient(); if (tbpassword.Text != "" && tbUsername.Text != "") { NetworkCredential auth = new NetworkCredential(tbUsername.Text, tbpassword.Text); client.Credentials = auth; } if (tbProxyAddress.Text != "" && tbProxyPort.Text != "") { WebProxy proxy = new WebProxy(tbProxyAddress.Text, Convert.ToInt32(tbProxyPort.Text)); if(tbProxyUsr.Text != "" && tbProxyPwd.Text != "") proxy.Credentials = new NetworkCredential(tbProxyUsr.Text, tbProxyPwd.Text); client.Proxy = proxy; } Uri uri = new Uri(tbURL.Text); client.DownloadFile(uri, tblocalFile.Text); client.Dispose(); HTTP Post Code... WebClient client = new WebClient(); if (tbpassword.Text != "" && tbUsername.Text != "") { NetworkCredential auth = new NetworkCredential(tbUsername.Text, tbpassword.Text); client.Credentials = auth; } if (tbProxyAddress.Text != "" && tbProxyPort.Text != "") { WebProxy proxy = new WebProxy(tbProxyAddress.Text, Convert.ToInt32(tbProxyPort.Text)); if (tbProxyUsr.Text != "" && tbProxyPwd.Text != "") proxy.Credentials = new NetworkCredential(tbProxyUsr.Text, tbProxyPwd.Text); client.Proxy = proxy; } Uri uri = new Uri(tbURL.Text); System.Collections.Specialized.NameValueCollection collect = new System.Collections.Specialized.NameValueCollection(); collect.Add("input", "Ronak"); collect.Add("submit", "Submit"); byte[] btArray = client.UploadValues(uri, "POST", collect); //byte[] btArray = client.UploadFile(uri, "POST", tblocalFile.Text); MessageBox.Show(Encoding.UTF8.GetString(btArray)); client.Dispose();