//Create Standalone SDK class dynamicly.
                                zkemkeeper.CZKEMClass axCZKEM1 = new zkemkeeper.CZKEMClass();
                                axCZKEM1.Connect_Net("10.0.0.43", 4370);
                                int iMachineNumber = 1;
                                int idwErrorCode = 0;
                                            string sIP = "";
                                            if (axCZKEM1.GetDeviceIP(iMachineNumber, ref sIP))
                                {
                                    MessageBox.Show("The Device IP is: " + sIP);
                                }
                                            else
                                {
                                    axCZKEM1.GetLastError(ref idwErrorCode);
                                    MessageBox.Show("Operation failed,ErrorCode=" + idwErrorCode.ToString(), "Error");
                                }