Purpose: Optimizes disk performance by reorganizing the files on
the disk (new with DOS Version 6).
You should start DEFRAG only from MS-DOS. Starting DEFRAG from a program
as Microsoft Windows may cause you to lose data. The following is a list
of DEFRAG exit codes:
0 The defragmentation was successful.
1 An internal error occurred.
2 The disk contained no free clusters. To operate, DEFRAG needs 1
3 The user pressed CTRL+C to stop the process.
4 A general error occurred.
5 DEFRAG encountered an error while reading a cluster.
6 DEFRAG encountered an error while writing a cluster.
7 An allocation error occurred. To correct the error, use the
8 A memory error occurred.
9 There was insufficient memory to defragment the disk.
/F - Used to defragment files, ensuring that the disk contains no
empty spaces between files.
/U - Used to defragment files, leaving empty spaces between files.
/S - Used to control the way in which files are sorted in their
Without this option, the current order of files will be maintained. You
any combination of the following sort options . Do not put spaces
N Alphabetical order by name.
N- Reverse alphabetical order by name.
E Alphabetical order by extension.
E- Reverse alphabetical order by extension.
D By date and time, earliest first.
D- By date and time, latest first.
S By size, smallest first.
S- By size, largest first
/B - Used to restart your computer after files have been reorganized.
/skiphigh Used to load DEFRAG into conventional memory, rather than
in upper memory.
/LCD - Specifies an LCD color scheme. /BW - Specifies a black and white color scheme. /GO - Used to disable the graphic mouse and graphic character set. /H - Used to move hidden files.
If you want to load DEFRAG into conventional memory and run it specifying
the files on drive C be sorted alphabetically by name, enter the