This C# code snippet performs an HTTP Post and returns the response as a string. using System.Net; ... string HttpPost (string uri, string parameters) { // parameters: name1=value1&name2=value2 WebRequest webRequest = WebRequest.Create (uri); //string ProxyString = // System.Configuration.ConfigurationManager.AppSettings // [GetConfigKey("proxy")]; //webRequest.Proxy = new WebProxy (ProxyString, true); //Commenting out above required change to App.Config webRequest.ContentType = "application/x-www-form-urlencoded"; webRequest.Method = "POST"; byte[] bytes = Encoding.ASCII.GetBytes (parameters); Stream os = null; try { // send the Post webRequest.ContentLength = bytes.Length; //Count bytes to send os = webRequest.GetRequestStream(); os.Write (bytes, 0, bytes.Length); //Send it } catch (WebException ex) { MessageBox.Show ( ex.Message, "HttpPost: Request error", MessageBoxButtons.OK, MessageBoxIcon.Error ); } finally { if (os != null) { os.Close(); } } try { // get the response WebResponse webResponse = webRequest.GetResponse(); if (webResponse == null) { return null; } StreamReader sr = new StreamReader (webResponse.GetResponseStream()); return sr.ReadToEnd ().Trim (); } catch (WebException ex) { MessageBox.Show ( ex.Message, "HttpPost: Response error", MessageBoxButtons.OK, MessageBoxIcon.Error ); } return null; } // end HttpPost