allow start/stop a specific service through GPO

I need to allow users/programs that have certan (old) ms-dos programs to
start few specific (new) services through GPO on my domain controller. I
found how to allow users to start services(Comp. config->win
settings->Sec.settings->System Services) but these services aren't on the
list of services in my GPO, is there a way to add them or something
Been searching net but could not find.