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Microsoft KB Archive/107136

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Knowledge Base

Article ID: 107136

Article Last Modified on 11/18/1999


  • Microsoft MS-DOS 6.2 Standard Edition
  • Microsoft MS-DOS 6.22 Standard Edition

This article was previously published under Q107136

This information applies to both Microsoft DoubleSpace and Microsoft DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands and filenames.


You may receive the following error message when you start your computer:

You cannot access any DoubleSpace-compressed drives because DBLSPACE.BIN is not loaded.

NOTE: DBLSPACE.BIN is the portion of MS-DOS that provides access to DoubleSpace-compressed drives.


This problem occurs when you have the following line in your CONFIG.SYS file and DBLSPACE.BIN is not in the root directory:

device=c:\dos\dblspace.sys /move


If you have DoubleSpace-compressed drives, you should copy DBLSPACE.BIN to the root directory of your boot drive. You can either copy it from the directory containing your MS-DOS files or expand it from your setup disks to C:\.

If you are not using DoubleSpace, remove all references to DBLSPACE.SYS from your CONFIG.SYS file.


This situation can occur when:

  • You remove MS-DOS 6.2 and Uninstall restores your pre-MS-DOS 6.2 CONFIG.SYS file, which includes the DEVICE command for DBLSPACE.SYS.
  • You format the host drive (to remove DoubleSpace) and then restore your backed up files (including your CONFIG.SYS file with the DBLSPACE.SYS reference).
  • You have one or more DoubleSpace-compressed drives, drive C is not compressed, and you delete DBLSPACE.BIN from the root directory of C.

Additional query words: 6.20

Keywords: KB107136