public override void OnRawMessage(string data, Socket handler)
            {
                base.OnRawMessage(data, handler);
                var message = new FileAssociationSingleInstance.SingleInstanceSocket.ParsedMessage(data).message;
                var str     = "OK";

                if (!string.IsNullOrEmpty(message))
                {
                    var length = 1;
                    for (var startIndex = 0; message.IndexOf('\t', startIndex) > 0; startIndex = message.IndexOf('\t', startIndex) + 1)
                    {
                        ++length;
                    }

                    string[] strArray = new string[length];
                    if (length == 1)
                    {
                        strArray[0] = message;
                    }
                    else
                    {
                        var startIndex = 0;
                        for (var index = 0; index < length; ++index)
                        {
                            var num = message.IndexOf('\t', startIndex);
                            if (num < 0)
                            {
                                num = message.Length - 1;
                            }

                            strArray[index] = message.Substring(startIndex, num - startIndex);
                            startIndex      = num + 1;
                        }
                    }
                    try
                    {
                        callback?.Invoke(strArray);
                    }
                    catch (Exception ex)
                    {
                        str = "FAIL";
                    }
                }
                try
                {
                    byte[] bytes = Encoding.UTF8.GetBytes(str + "<EOF>");
                    handler.Send(bytes);
                }
                catch (Exception ex)
                {
                    str = "FAIL";
                }
                if (!(str == "FAIL"))
                {
                    return;
                }

                FileAssociationSingleInstance.UnRegisterAsSingleInstance();
            }
        private static void NewInstanceEventCallback(string[] arg)
        {
            if (arg == null || arg.Length != 1 || FileAssociationSingleInstance.OnNewInstance == null)
            {
                return;
            }

            FileAssociationSingleInstance.OnNewInstance(arg);
        }