private static void QueryIEProxySettings()
{
           string strFileURL = "www.hotmail.com";

           HttpWebRequest WebReqt = (HttpWebRequest)HttpWebRequest.Create(strFileURL);

           WebProxy WP = new WebProxy(WebReqt.Proxy.GetProxy(new Uri(strFileURL)));

           WP.Credentials = CredentialCache.DefaultCredentials;

           Console.WriteLine(WP.Address);

           // or use the Below...

           //CheckForProxy(new Uri("http://www.hotmail.com"));
}

private static void CheckForProxy(Uri resource)
{
           WebProxy proxy = (WebProxy)WebProxy.GetDefaultProxy();

           Uri proxyUri = proxy.GetProxy(resource);

           if (proxyUri == resource)
           {
               Console.WriteLine("No proxy for {0}", resource);
           }
           else
           {
               Console.WriteLine("Proxy for {0} is {1}", resource, proxyUri.ToString());
           }

}