public class CustomWebClient : WebClient
    {
        private CookieContainer cookieContainer = new CookieContainer();
        
        protected override WebRequest GetWebRequest(Uri address)
        {
            WebRequest request = base.GetWebRequest(address);
            if (request is HttpWebRequest)
            {
                (request as HttpWebRequest).CookieContainer = cookieContainer;
                (request as HttpWebRequest).AllowAutoRedirect = true;
                (request as HttpWebRequest).AutomaticDecompression = DecompressionMethods.GZip;
            }
            return request;
        }
    }