_ACL

headersMetadatacopy
struct _ACL {
    unsigned char AclRevision;/* 0x0  1 */
    unsigned char Sbz1;/* 0x1  1 */
    unsigned short AclSize;/* 0x2  2 */
    unsigned short AceCount;/* 0x4  2 */
    unsigned short Sbz2;/* 0x6  2 */
};
/* computed from the NT 4.0 DDK headers */