Article ID: 71667 - View products that this article applies to.
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The MS-DOS commands APPEND, SUBST, and JOIN modify the way MS-DOS searches for files. This can cause problems with certain applications, including Microsoft Windows and Windows for Workgroups.
Windows 3.0The README.TXT that comes with Microsoft Windows version 3.0 includes the following:
If any of these commands are in the AUTOEXEC.BAT file when Microsoft Windows 3.0 is installed, they can cause the installation to be corrupted. This can cause the unrecoverable application errors (UAEs) to continue to occur even after the APPEND, JOIN, and SUBST commands are removed from the AUTOEXEC.BAT file.
Omit the APPEND, JOIN, and SUBST MS-DOS Utilities ------------------------------------------------- The MS-DOS utilities APPEND, JOIN, and SUBST can cause problems when you are running Windows 3.0. If you included APPEND, JOIN, or SUBST in your AUTOEXEC.BAT file, remove them and refrain from running them within Windows.
These commands can also cause intermittent UAEs if they are added after the installation of Windows. Therefore, customers who use Microsoft Windows 3.0 should be warned when these commands are added to the AUTOEXEC.BAT files.
Windows 3.1The MS-DOS utilities APPEND, JOIN, and SUBST are listed in the [incompTSR2] section of the SETUP.INF file. If you are running these programs when you run Windows Setup, you receive the following message:
For more information on the SUBST, JOIN, and APPEND commands, query on the following words:
SETUP has found the programs listed below on your system. When SETUP or Windows runs with some versions of these programs, your system may fail. It is recommended that you quit Setup now and look in the file SETUP.TXT for information about using the programs with Setup or Windows. Then run Setup again.
subst and path and msdos
subst and join and append
Article ID: 71667 - Last Review: February 27, 2014 - Revision: 4.0