Had to do some screen scraping...
string url = Request.Form["formaction"].ToString();
string result;
UTF8Encoding en = new UTF8Encoding();
HttpWebRequest req = (HttpWebRequest)WebRequest.Create(url);
req.Headers.Add("name", "\"blah\"");
req.ContentType = "text/html";
req.Accept = "text/html";
req.ContentLength = 0;
req.Method = "POST";
WebResponse resp = req.GetResponse();
Stream stm = resp.GetResponseStream();
StreamReader r = new StreamReader(stm);
result = r.ReadToEnd();
r.Close();