The description below is from the book DOS the Easy Way by Everett Murdock Ph.D.
CLICK HERE for information about downloading the book.
Type: External (2.0 to 5.0)
Purpose: Resolves sector problems on a file or a disk.
DOS Version 6, this program is no longer available; in DOS Version 6 and
use the ScanDisk utility.)
If a disk develops problems, you can use this command to attempt to fix
problems. You can recover either the file containing that sector (but
the bad sector) or the entire disk (if there were sector problems in the
To recover the file NEWFILES.TXT, enter
The program will read the file, sector by sector, skipping the bad
When a bad sector is found, the sector is marked and DOS will no longer
your data to that sector.
To recover the disk in drive A, enter
Each recovered file will be listed in the directory in the form
where nnnn is a sequential number starting with 0001.
If there is not enough room in the root directory, a message will be
the program will store information about the extra files in the file
table. You can run RECOVER later to regain these files (after you have
files to make more room in the root directory).