Microsoft Knowledge Base

FastTips: MS-DOS 6.2 DoubleSpace Uncompress Q&A
Last reviewed: November 23, 1994
Article ID: Q105077
The information in this article applies to:
  • Microsoft MS-DOS operating system versions 6.2, 6.22

IMPORTANT: Although the text in the following questions and answers specifically refers to MS-DOS 6.2 DoubleSpace, the information also applies to MS-DOS 6.22 DriveSpace. If you have MS-DOS 6.22, substitute DRVSPACE for any DBLSPACE commands. 

1. Q. When I try to uncompress my DoubleSpace drive, I get an error
      message telling me I have a duplicate filename on my DoubleSpace-
      compressed drive and host drive. I cannot find any duplicate files
      or directories on my DoubleSpace-compressed drive and my host drive.
      What can I do to correct this?

   A. If you cannot identify the duplicate filename, the file or
      directory may be hidden. Use the TYPE command or MS-DOS Editor
      to view the DBLSPACE.LOG file that is located on your host
      drive. Once you have determined the duplicate filename(s), use
      the DIR /A command to look for the file(s). You can use the
      ATTRIB command to remove the hidden or system attribute from the
      file(s) and then rename or delete the file(s).

      If DBLSPACE.LOG lists a directory, you can use the MOVE command
      to rename the directory. For example, type "move h:\sentry
      h:\xsentry" (without the quotation marks) at the MS-DOS command
      prompt and press ENTER.

2. Q. I'm trying to uncompress my drive but DoubleSpace tells me there
      isn't enough space to uncompress my data, what can I do?

   A. When you uncompress your DoubleSpace-compressed drive, you are
      taking compressed data and expanding it. If your drive was
      nearly full when you compressed it and you have since added new
      software or documents, you may have more data than will fit on
      an uncompressed drive.

      If you must remove DoubleSpace, you must either remove some
      files before you uncompress your drive or purchase a larger hard
      disk drive.

      NOTE: DoubleSpace is very conservative when estimating the free
      space required to uncompress a floppy disk. DoubleSpace may
      require you to free some space even when it seems the data will
      fit on the uncompressed disk.

KBCategory: kbtool kbfasttip
KBSubcategory: msdos
Additional reference words: 6.20

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Last reviewed: November 23, 1994
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