LISTFREE : List Free Cluster Program Version 1.00, 14-Feb-1987
SMG Software

Shows available clusters on a disk. A group of consecutive free clusters
lists as a range.

Format: LISTFREE [d:]
LISTFREE (Lists free clusters on the default drive)
LISTFREE A: (Lists free clusters on drive A:)

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LISTBAD : List Bad Cluster Program Version 1.24, 16-Feb-1987

Shows bad clusters on a disk. A group of consecutive bad clusters lists
as a range.

Format: LISTBAD [d:]
LISTBAD (Lists free clusters on the default drive)
LISTBAD A: (Lists free clusters on drive A:)

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OWNER : Cluster Owner Program Version 1.61, 21-Apr-1987

Shows which file contains a particular cluster number.

The first cluster on any disk is considered by DOS to be #2.

Once you have determined which file the cluster belongs to, you can copy
it to another place on the disk, or RECOVER it, or simply delete it.

You may then use the MARK program to mark that cluster as bad.

Format: OWNER [d:] n [[d:] n [...]]
d: = Optional Drive Letter n = Cluster Number to Check

OWNER 10 (Shows which file owns cluster 10 on the default drive)
OWNER A: 100 (Shows which file owns cluster 100 on Drive A:)
OWNER D: 5 12 (Shows which file owns clusters 5 and 12 on Drive D:)
OWNER 17 A: 7 (Shows which file owns cluster 17 on the default drive
and which file owns cluster 7 on Drive A:)

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MARK : Mark/UnMark Bad Cluster Program Version 2.31, 12-Jan-1987

Marks or unmarks a cluster as bad.
The first cluster on any disk is considered to be #2.
You can only MARK unused clusters.
To MARK a used cluster as bad, use the OWNER program to determine which
file is using that cluster, copy that file to another name, delete the
original file (to free the cluster) and THEN mark the cluster as bad.

Format: MARK [d:] [/Q | /U | /M] n
d: Optional drive letter. If omitted, the default drive is used.
/Q Query switch. Shows current status of the specified clusters
If no other switch is specified, Query is assumed.
/U Un-mark switch. The specified clusters will be un-marked.
/M Mark switch. The specified clusters will be marked as bad.
n Cluster Number, in decimal. The first data cluster is 2.

MARK 0 (Will give an *ERROR*, first cluster is 2)
MARK 23 (Shows current status of cluster 23 on current disk)
MARK A: /Q 14 (Shows current status of cluster 14 on drive A:)
MARK /M 2 (Marks cluster 2 of the current disk as bad)
MARK B: /U 10 (Unmarks cluster 10 of drive B: as bad)