The ACCESS_ALLOWED_ACE structure defines an access-control entry (ACE) for the discretionary access-control list (ACL) that controls access to an object. An access-allowed ACE allows access to an object for a specific subject identified by a security identifier (SID).
typedef struct _ACCESS_ALLOWED_ACE { // aaace
ACE_HEADER Header;
ACCESS_MASK Mask;
DWORD SidStart;
} ACCESS_ALLOWED_ACE;
ACE structures must be aligned on DWORD boundaries. All Win32 memory-management functions return DWORD-aligned handles to memory.
Windows NT: Requires version 3.1 or later.
Windows: Unsupported.
Windows CE: Unsupported.
Header: Declared in winnt.h.
Low-Level Access-Control Overview, Low-Level Access Control Structures, AddAccessAllowedAce, AddAce, GetAce, ACCESS_DENIED_ACE, ACCESS_MASK, ACE_HEADER, ACL, SID, SYSTEM_ALARM_ACE, SYSTEM_AUDIT_ACE