| Min version | 2003/XP64 SP1 | Vista SP1 |
|---|---|---|
| Max version | 2003/XP64 SP2 | Vista SP2 |
| x64 offset offset:bitpos | Field Name | |
| 0x0000 | struct _OBJECT_DIRECTORY_ENTRY *[37] HashBuckets | |
| 0x0128 | struct _EX_PUSH_LOCK Lock | |
| 0x0130 | struct _DEVICE_MAP * DeviceMap | |
| 0x0138 | unsigned long SessionId | |
| 0x0140 | void * NamespaceEntry | |
| 0x0148 | unsigned long Flags | |