| Min version | Vista SP1 | 8 Pre RTM |
|---|---|---|
| Max version | 7 SP1 | 10 TH2 |
| x64 offset offset:bitpos | Field Name | |
| 0x0000 | uint16_t Depth | |
| 0x0000 | volatile unsigned long OffsetAndDepth | long Exchg |
| 0x0000 | volatile int64_t Exchg | |
| 0x0002 | uint16_t FreeEntryOffset | uint16_t Hint |
| 0x0002 | uint16_t Hint16 | |
| 0x0002:0x0F | uint16_t Lock | |
| 0x0004 | volatile unsigned long Sequence | |