DoubleSpace Leaves ASPI4DOS.SYS and UPSI14.SYS on Host Drive (104947)
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 Q104947
This information applies to both Microsoft DoubleSpace and Microsoft
DriveSpace. For MS-DOS 6.22, use DRVSPACE in place of DBLSPACE for commands
MS-DOS 6.2 DoubleSpace leaves the following files on the uncompressed
DoubleSpace supports restartability during the compress and uncompress
processes. If you are compressing or uncompressing a DoubleSpace-
compressed drive and the process is interrupted (for example, there is
a loss of power), MS-DOS restarts the DoubleSpace compress or
uncompress process when the machine restarts.
Machines that use ASPI4DOS.SYS or USPI14.SYS need to have these files
available when the system restarts. To support these machines,
DoubleSpace leaves the files on the uncompressed host drive.
DoubleSpace knows to leave these files on the uncompressed host drive by
reading the COPY= settings in the DBLSPACE.INF file. The COPY=[filename]
entry specifies that the file should be copied to the compressed drive as
well as left on the uncompressed drive.
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