Err Msg After Installing MS-DOS 6.21: Wrong DBLSPACE.BIN... (113543)
The information in this article applies to:
• Microsoft MS-DOS operating system 6.21
• Microsoft MS-DOS operating system 6.22
This article was previously published under Q113543
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
After you install MS-DOS 6.21 Upgrade on your MS-DOS 6.0 system, you
receive the following error message when you start your computer:
Wrong DBLSPACE.BIN version
In addition, DBLSPACE.SYS may display the following message:
You cannot access any DoubleSpace drives because DBLSPACE.BIN is not
loaded. (DBLSPACE.BIN is the portion of MS-DOS that provides access to
If you have compressed any drives using DoubleSpace, you cannot access the
data on those drives.
This problem occurs when MS-DOS 6.21 Upgrade Setup is unable to patch your
DBLSPACE.BIN, DBLSPACE.EXE, and DBLSPACE.SYS files.
The Upgrade Setup program can patch your DBLSPACE.* files only if you are
running MS-DOS 6.0 at the time you run Setup. If you boot from the MS-DOS
6.21 disk before running Setup, the DBLSPACE.* files cannot be patched.
To correct this problem, boot your system from your Uninstall disk and
restore your system to MS-DOS version 6.0. Then boot your computer from the
hard disk drive using MS-DOS 6.0 and rerun MS-DOS 6.21 Upgrade Setup.
If you do not have your Uninstall disk, boot from your MS-DOS 6.0 Disk 1,
press F3 to exit the Setup program, and then rerun MS-DOS 6.21 Upgrade
If you do not have your Uninstall disk and your MS-DOS 6.0 Disk 1 does not
fit in drive A, insert your MS-DOS 6.0 Disk 1 in drive B and run B:\SETUP
/F. Follow the instructions on the screen to create an MS-DOS 6.0 startup
floppy disk in drive A. After completing the SETUP /F, boot from the
Startup disk and rerun MS-DOS 6.21 Upgrade Setup.
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