Format of extended free space structure |
| Offset | Size | Description |
|---|---|---|
|
00h |
WORD |
(ret) size of returned structure |
|
02h |
WORD |
(call) structure version (0000h) (ret) actual structure version (0000h) |
|
04h |
DWORD |
number of sectors per cluster (with adjustment for compression) |
|
08h |
DWORD |
number of bytes per sector |
|
0Ch |
DWORD |
number of available clusters |
|
10h |
DWORD |
total number of clusters on the drive |
|
14h |
DWORD |
number of physical sectors available on the drive, without adjustment for compression |
|
18h |
DWORD |
total number of physical sectors on the drive, without adjustment for compression |
|
1Ch |
DWORD |
number of available allocation units, without adjustment for compression |
|
20h |
DWORD |
total allocation units, without adjustment for compression |
|
24h |
8 BYTEs |
reserved |