DRVSPACE /DEFRAGMENT

Defragments the selected compressed drive. Defragmenting a compressed drive
consolidates the free space on it. If you are planning to reduce the size of
a compressed drive, you should first use the Defragment command to
consolidate the drive's free space. You can then make the drive smaller than
you could if you did not first defragment it.

Syntax

    DRVSPACE /DEFRAGMENT [/F ] [drive:]

Parameter

drive1:
    Specifies the drive you want to defragment. This parameter is optional;
    if you do not specify a drive, DriveSpace defragments the current
    drive.

Switches

/DEFRAGMENT
    Directs DriveSpace to defragment the specified drive. This switch can be
    abbreviated as /DEF.

/F
    Enables the specified drive to be defragmented more fully. For more
    information about using the /F switch, see Notes.