public void loadserver(ComboBox combo) { var localMachine = RegistryKey.OpenRemoteBaseKey(RegistryHive.LocalMachine, Registry64); var rk = localMachine.OpenSubKey("SOFTWARE\\MICROSOFT\\MICROSOFT SQL Server"); var instances = (string[])rk.GetValue("InstalledInstances"); if (instances.Length > 0) { foreach (var element As instances) { if (element == "MSSQLSERVER") { (combo.Items.Add(System.Environment.MachineName; } else { (combo.Items.Add(System.Environment.MachineName + " \\" + element; } } }