public static extern bool DeleteService(SafeServiceHandle hService);
 public static unsafe extern bool ChangeServiceConfig2(SafeServiceHandle hService, ServiceInfoLevel dwInfoLevel, void *lpInfo);
 public static extern SafeServiceHandle OpenService(SafeServiceHandle hSCManager, string lpServiceName, ServiceAccess dwDesiredAccess);
 public static extern SafeServiceHandle CreateService(SafeServiceHandle hSCManager, string lpServiceName, string lpDisplayName, ServiceAccess dwDesiredAccess, ServiceType dwServiceType, ServiceStartType dwStartType, ServiceErrorControl dwErrorControl, string lpBinaryPathName, string lpLoadOrderGroup, int lpdwTagId, string lpDependencies, string lpServiceStartName, string lpPassword);