| Constant | Value | Description | 
|---|---|---|
| WIN32_SERVICE_AUTO_START | 0x00000002 | A service started automatically by the service control manager during system startup. | 
| WIN32_SERVICE_DEMAND_START | 0x00000003 | A service started by the service control manager when a process calls the StartService function. | 
| WIN32_SERVICE_DISABLED | 0x00000004 | A service that cannot be started. Attempts to start the service result in
       the error code WIN32_ERROR_SERVICE_DISABLED. |