| Min version | 2003/XP64 SP1 | Vista SP2 |
|---|---|---|
| Max version | Vista SP1 | |
| x64 offset offset:bitpos | Field Name | |
| 0x0000 | struct _OBJECT_DIRECTORY * DosDevicesDirectory | |
| 0x0008 | struct _OBJECT_DIRECTORY * GlobalDosDevicesDirectory | |
| 0x0010 | unsigned long ReferenceCount | void * DosDevicesDirectoryHandle |
| 0x0014 | unsigned long DriveMap | |
| 0x0018 | uint8_t[32] DriveType | unsigned long ReferenceCount |
| 0x001C | unsigned long DriveMap | |
| 0x0020 | uint8_t[32] DriveType | |