AzureTicker.Worker.BL.BillProvider.BuildThirdRequest C# (CSharp) Method

        private static HttpWebRequest BuildThirdRequest(CookieContainer cookies, HttpWebRequest httpRequest, string requestBody)
        {
            string POSTANON = "https://login.microsoftonline.com/login.srf";

            //POST the Info and Accept the Bungie Cookies
            httpRequest = (HttpWebRequest)HttpWebRequest.Create(POSTANON);

            httpRequest.UserAgent = "Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; rv:1.9.1.8) Gecko/20100202 Firefox/3.5.8 (.NET CLR 3.5.30729)";
            httpRequest.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";
            httpRequest.Headers.Add("Accept-Language", "en-us,en;q=0.5");
            httpRequest.Headers.Add("Accept-Encoding", "gzip,deflate");
            httpRequest.Headers.Add("Accept-Charset", "ISO-8859-1,utf-8;q=0.7,*;q=0.7");
            httpRequest.Headers.Add("Keep-Alive", "115");
            httpRequest.Referer = loginUrl;
            httpRequest.CookieContainer = cookies;
            httpRequest.ContentType = "application/x-www-form-urlencoded";
            httpRequest.Method = WebRequestMethods.Http.Post;

            httpRequest.Expect = null;

            using (Stream ostream = httpRequest.GetRequestStream())
            {
                byte[] buffer = ASCIIEncoding.ASCII.GetBytes(requestBody);
                ostream.Write(buffer, 0, buffer.Length);
                ostream.Close();
            }
            return httpRequest;
        }