Undocumented functions of NTDLL

2OOO, 19 October

NTSYSAPI 
NTSTATUS
NTAPI
NtQueryKey(

  IN HANDLE               KeyHandle,
  IN KEY_INFORMATION_CLASS KeyInformationClass,
  OUT PVOID               KeyInformation,
  IN ULONG                Length,
  OUT PULONG              ResultLength );

See ZwQueryKey in NT DDK or 2000 DDK for detailed description.