１. 機能
  dpb.exeはドライブ(A:〜Z:)のデバイスパラメータブロックを表示します。
  FAT32（Windows 95 OSR2以降の大容量ドライブ）には対応していません。

２. 起動方法
dpb drive:

drive: ドライブ(A:〜Z:)

３. 実行例
A:>dpb a:

drive A:
00h     drive number (0 = A:, 1 = B:, etc):                               0
01h     unit number within device drive:                                  0
02h,03h bytes per sector:                                               512
04h     highest sector number within a cluster:                          15
05h     shift count to convert clusters into sectors:                     4
06h,07h number of reserved sectors at beginning of drive:                 2
08h     number of FATs:                                                   2
09h,0ah number of root directory entries:                              3072
0bh,0ch number of first sector containing user data:                    706
0dh,0eh highest cluster number:                                       65364
0fh,10h number of sectors per FAT:                                      256
11h,12h sector number of first directory sector:                        514
13h-16h address of device driver header:                          08bb:26cc
17h     media ID byte:                                                  f8h
18h     00h if disk accessed, ffh if not:                               00h
19h-1ch address of device driver header:                          0436:147d
1dh,1eh cluster at which to start search for free space when writing:     0
1fh,20h number of free clusters on drive, 65535 = unknown:            65535
total sectors=1046514