| Min version | Vista SP1 |
|---|---|
| Max version | 10 TH2 |
| x64 offset offset:bitpos | Field Name |
| 0x0000 | struct _HEAP_LIST_LOOKUP * ExtendedLookup |
| 0x0008 | unsigned long ArraySize |
| 0x000C | unsigned long ExtraItem |
| 0x0010 | unsigned long ItemCount |
| 0x0014 | unsigned long OutOfRangeItems |
| 0x0018 | unsigned long BaseIndex |
| 0x0020 | struct _LIST_ENTRY * ListHead |
| 0x0028 | unsigned long * ListsInUseUlong |
| 0x0030 | struct _LIST_ENTRY * * ListHints |