Events
Apr 8, 3 PM - May 28, 7 AM
Sharpen your AI skills and enter the sweepstakes to win a free Certification exam
Register now!Note
Access to this page requires authorization. You can try signing in or changing directories.
Access to this page requires authorization. You can try changing directories.
The security identifier (SID) structure is a variable-length structure used to uniquely identify users or groups.
Applications should not modify a SID directly. To create and manipulate a security identifier, use the functions listed in the See Also section.
typedef struct _SID {
BYTE Revision;
BYTE SubAuthorityCount;
SID_IDENTIFIER_AUTHORITY IdentifierAuthority;
#if ...
DWORD *SubAuthority[];
#else
DWORD SubAuthority[ANYSIZE_ARRAY];
#endif
} SID, *PISID;
Revision
SubAuthorityCount
IdentifierAuthority
SubAuthority[*]
SubAuthority[ANYSIZE_ARRAY]
| Requirement | Value |
|---|---|
| Minimum supported client | Windows XP [desktop apps only] |
| Minimum supported server | Windows Server 2003 [desktop apps only] |
| Header | winnt.h (include Windows.h) |