use SERVICES_ACTIVE_DATABASE if the caller didn't specify a database for OpenSCManager()
drwxr-xr-x - irc
drwxr-xr-x - msvc6
drwxr-xr-x - os2
drwxr-xr-x - posix
drwxr-xr-x - reactos
drwxr-xr-x - rosapps
drwxr-xr-x - vms