Windows for Workgroups 3.11 does not allow 32-bit file access on a
system that has the DBLSPACE.BIN file from MS-DOS 6.0 loaded. MS-DOS
6.2 is required for compatibility with 32-bit file access.
If DBLSPACE.BIN from MS-DOS 6.0 is loaded in memory, the 32-bit file
access option is disabled. If you are using MS-DOS 6.0 and do not have
any compressed drives mounted but DBLSPACE.BIN is loaded in memory,
32-bit file access is still unavailable. You must unload DBLSPACE.BIN
from memory to enable 32-bit file access.
NOTE: Microsoft recommends that you make a backup copy of your DBLSPACE.INI
file before you use the following procedure.
To unload DBLSPACE.BIN, proceed as follows:
• Remove the system and hidden attributes from the DBLSPACE.INI file
in the root directory of your startup drive by typing the following
at the MS-DOS command prompt and then pressing ENTER:
• Rename the DBLSPACE.INI file by typing the following at the MS-DOS
command prompt and then pressing ENTER:
attrib -s -h -r c:\dblspace.ini
• Restart your computer by pressing CTRL+ALT+DEL.
ren c:\dblspace.ini dblspace.ino
If you want to use any compressed drives on your system, you must
rename the DBLSPACE.INO file to DBLSPACE.INI and restart your
For more information on how DBLSPACE.BIN determines if it should
remain in memory, query on the following words in the Microsoft
dblspace.bin and dblspace.ini and memory