how to get target of a redirect

[BeemerBiker]

I did spend some time googleing this but all I got was how to do the redirect.

The url xxxx redirects to yyyy just fine.

How do I get the value of the yyyy so I can access it directly and modify it.

        private string GetHTML(string url)
        {
            StringBuilder sb = new StringBuilder();
            byte[] buf = new byte[8192]; //[1048576];
            HttpWebRequest request;
            HttpWebResponse response;
            Stream resStream;
            try
            {
                request = (HttpWebRequest)WebRequest.Create(url);
                request.AllowAutoRedirect = true;
                response = (HttpWebResponse)request.GetResponse();
                resStream = response.GetResponseStream();
            }
            catch (Exception eee)
            {
                MessageBox.Show(eee.Message.ToString() + ":" + url);
                return "";
            }

The above code works for
http://climateprediction.net/show_us...?userid=531866

but it fails for
http://climateprediction.net/list_us...?userid=531866

If I can change climateprediction.net into "climateapps2.oucs.ox.ac.uk/cpdnboinc" then it would work.