| Min version | 8 Pre RTM | 10 Pre RTM |
|---|---|---|
| Max version | 8.1 Update 1 | 10 TH2 |
| x64 offset offset:bitpos | Field Name | |
| 0x0000 | struct _EX_PUSH_LOCK FreeListLock | |
| 0x0008 | struct _HANDLE_TABLE_ENTRY * FirstFreeHandleEntry | union _HANDLE_TABLE_ENTRY * FirstFreeHandleEntry |
| 0x0010 | struct _HANDLE_TABLE_ENTRY * LastFreeHandleEntry | union _HANDLE_TABLE_ENTRY * LastFreeHandleEntry |
| 0x0018 | long HandleCount | |
| 0x001C | unsigned long HighWaterMark | |
| 0x0020 | unsigned long[8] Reserved | |