Criteria for ActivateDrive Entry for Removable Media (103530)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.2
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q103530
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
Since MS-DOS 6.2 can automatically mount floppy disk and other
removable media, it is not always necessary for DoubleSpace to put an
ActivateDrive entry in the DBLSPACE.INI file for all removable media.
DoubleSpace creates an activation line for removable media (so they
are available at boot time) if the media is 5 megabytes (MB) or
larger. This design allows DoubleSpace to support bootable removable
hard disk drives.
If you want to have compressed removable media (smaller than 5 MB)
available at boot time, you can edit the DBLSPACE.INI file and add a
ActivateDrive line. To do this:
• Type dblspace /list at the MS-DOS
command prompt (and then press ENTER) to determine which drives are
available for DoubleSpace. Make a note of these drive letters.
NOTE: If no drive letters are available, use the DBLSPACE /LASTDRIVE
command to increase the last drive letter available to DoubleSpace and
then restart your computer.
• Change to drive C. If drive C is compressed, change to the host
drive for C.
To determine which drive is your host drive, type dblspace /list at the MS-DOS command prompt and then
• Use the ATTRIB command to change the file attributes on the
DBLSPACE.INI file. For example:
attrib \dblspace.ini -s -h -r
• Edit the DBLSPACE.INI file with a text editor, such as MS-DOS
• Add the ActivateDrive line for your removable media drive as
Use one of the drive letters you identified as available for
DoubleSpace in step 1 for <host>. Use the drive letter of your
removable media for <removable media>. The last value is a zero (0).
• Save the file and exit the text editor.
• Ensure that the media is in the removable media drive and
restart your computer.
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