DoubleSpace Maintenance Program Does Not Display All Drives (104535)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.0
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q104535
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
When you compress an existing drive or create a new compressed drive
using the DoubleSpace maintenance program, some of your drives may not
appear in the list of available drives.
The DoubleSpace maintenance program does not display drives that do
not have sufficient free space to be compressed.
To work around this problem, ensure the disk you want to compress has
enough free disk space. To determine how much space is required,
refer to the following table:
Disk Type Free Space Required
Non-Boot Disk (compressed from command line) 1.13 MB
Non-Boot Disk (compressed from 1.13 MB
Boot Disk (compressed from command line) 1.45 MB
Boot Disk (compressed from command line) 1.63 MB
Floppy Disk 1.10 MB
NOTE: MS-DOS 6.2 Help contains incorrect numbers for free space
required if you are attempting to compress a boot disk.
For more information, type help dblspace /compress
at the MS-DOS command prompt and then press ENTER.
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