Problems Using DoubleSpace on Disk Manager Partitioned Drive (104990)


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 Q104990

SYMPTOMS

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.

If the DMDRVR.BIN command is loaded after SMARTDRV /DOUBLE_BUFFER in your CONFIG.SYS file and your hard disk drive has more than 1024 cylinders, it may appear that your compressed data is lost after you create a new DoubleSpace-compressed drive.

This problem occurs when you have other DoubleSpace-compressed drives and you try to create a new DoubleSpace-compressed drive using the Disk Manager partitioned drive as the host.

CAUSE

This problem occurs when DMDRVR.BIN is loaded after SMARTDRV DOUBLE_BUFFER in the CONFIG.SYS file. DMDRVR.BIN should be the first device loaded in the CONFIG.SYS file.

RESOLUTION

To work around this problem:

    • Restart your computer and press CTRL+F5 when the "Starting MS-DOS..." message is displayed.
    • Delete the C:\DBLSPACE.BIN and C:\DBLSPACE.INI files.

    NOTE: You may have to remove the file attributes first.
    • Restart your computer.
    • Edit your CONFIG.SYS file with a text editor such as MS-DOS Editor.
    • Move the DMDRVR.BIN command to the top of your CONFIG.SYS file.
    • Save the CONFIG.SYS file and exit the text editor.
    • Restart your computer.
    • Run DoubleSpace and create the new DoubleSpace-compressed drive again.
Modification Type: Major Last Reviewed: 11/21/1999
Keywords: KB104990
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