| Min version | 2003/XP64 SP1 | Vista SP2 |
|---|---|---|
| Max version | Vista SP1 | |
| x86 offset offset:bitpos | Field Name | |
| 0x0000 | struct _OBJECT_DIRECTORY * DosDevicesDirectory | |
| 0x0004 | struct _OBJECT_DIRECTORY * GlobalDosDevicesDirectory | |
| 0x0008 | unsigned long ReferenceCount | void * DosDevicesDirectoryHandle |
| 0x000C | unsigned long DriveMap | unsigned long ReferenceCount |
| 0x0010 | uint8_t[32] DriveType | unsigned long DriveMap |
| 0x0014 | uint8_t[32] DriveType | |