public string GetJson(string URL)
		{
			try
			{
				 ServicePointManager.SecurityProtocol |=
                SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12;
				var request = (HttpWebRequest)WebRequest.Create(URL);
				request.Credentials = CredentialCache.DefaultCredentials;
				WebResponse webResponse = request.GetResponse();
				Stream webStream = webResponse.GetResponseStream();
				StreamReader responseReader = new StreamReader(webStream);
				string response = responseReader.ReadToEnd();
				return response;
			}
			catch (WebException e)
			{
				 log+= e.Message + "\n";
				if(e.Response != null){
						log+= new StreamReader(e.Response.GetResponseStream()).ReadToEnd().ToString();
					}
				return "-1";
			}
			return "-1";
		}        
  
  
  
  
  
  
  
  string contactHistoryReplace = resultStr.Replace("http://www.v8.1c.ru/ssl/contactinfo", WebUtility.UrlEncode("http://www.v8.1c.ru/ssl/contactinfo"))
                                                        .Replace("http://www.w3.org/2001/XMLSchema", WebUtility.UrlEncode("http://www.w3.org/2001/XMLSchema"))
                                                        .Replace("http://www.w3.org/2001/XMLSchema-instance", WebUtility.UrlEncode("http://www.w3.org/2001/XMLSchema-instance"))
                                                        .Replace(@"\r\n", string.Empty)
                                                        .Replace(@"\", string.Empty)
                                                        .Replace("\"", "\\\"");