#ifndef _NTREGAPI_H

// System calls

NTSYSCALLAPI
NTSTATUS
NTAPI
NtCreateKey(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes,
    _Reserved_ ULONG TitleIndex,
    _In_opt_ PUNICODE_STRING Class,
    _In_ ULONG CreateOptions,
    _Out_opt_ PULONG Disposition
    );

#endif
View code on GitHub

#ifndef _NTZWAPI_H

NTSYSCALLAPI
NTSTATUS
NTAPI
ZwCreateKey(
    _Out_ PHANDLE KeyHandle,
    _In_ ACCESS_MASK DesiredAccess,
    _In_ POBJECT_ATTRIBUTES ObjectAttributes,
    _Reserved_ ULONG TitleIndex,
    _In_opt_ PUNICODE_STRING Class,
    _In_ ULONG CreateOptions,
    _Out_opt_ PULONG Disposition
    );

#endif
View code on GitHub