RtlInitializeSidEx - NtDoc

#ifndef _NTRTL_H
#if (PHNT_VERSION >= PHNT_THRESHOLD)

NTSYSAPI
NTSTATUS
NTAPI
RtlInitializeSidEx(
    _Out_writes_bytes_(SECURITY_SID_SIZE(SubAuthorityCount)) PSID Sid,
    _In_ PSID_IDENTIFIER_AUTHORITY IdentifierAuthority,
    _In_ UCHAR SubAuthorityCount,
    ...
    );

#endif
#endif
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