Article: Q97016
Product(s): Microsoft Disk Operating System
Version(s): MS-DOS:6.0,6.2,6.21,6.22; WINDOWS:3.0,3.0a,3.1,3.11
Operating System(s):
Keyword(s):
Last Modified: 16-NOV-1999
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The information in this article applies to:
- Microsoft MS-DOS operating system versions 6.0, 6.2, 6.21, 6.22
- Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11
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SYMPTOMS
========
If you start Microsoft Windows in 386 enhanced mode after you upgrade to MS-
DOS, you may receive the following error message:
EMM386: Unable to start enhanced mode Windows due to invalid path
specification for EMM386
CAUSE
=====
This error can be caused by the following:
- A possible incompatibility between Windows, EMM386.EXE version 4.45, and
VSafe.
For more information, type "help vsafe" (without the quotation marks) at the
MS-DOS command prompt, press ENTER, and then choose Note.
- The presence of MS-DOS CHKLIST.MS (or older Central Point CHKLIST.CPS) check
list files in your Windows or MS-DOS directory.
- With MS-DOS 6.2 Upgrade, running Microsoft Anti-Virus (MSAV) before running
MS-DOS 6.2 Step-Up installation, and loading the MS-DOS VSafe program.
WORKAROUND
==========
If you are running the MS-DOS version of VSafe (not Central Point VSafe or PC
Tools Vdefend), you should first add the /Y parameter (along with the path to
EMM386.EXE) to the DEVICE command for EMM386.EXE in your CONFIG.SYS file. For
example, add the following:
device=c:\dos\emm386.exe noems /y=c:\dos\emm386.exe
If you are running MS-DOS 6.0, work around this problem as follows:
- Unload VSafe by typing "vsafe /u" (without the quotation marks) at the MS-DOS
command prompt, or change the command for VSafe in your AUTOEXEC.BAT file so
that it has the path to the DOS directory (for example, C:\DOS\VSAFE.COM) and
then restart your computer.
-or-
- Delete the CHKLIST.MS files (and any CHKLIST.CPS files) from the Windows or
\DOS directories.
-or-
- Use the Windows version of EMM386.EXE.
If the problem occurred when you upgraded to MS-DOS 6.2, try the following:
- Run MSAV again after upgrading.
-or-
- Delete the CHKLIST.MS file from your Windows or MS-DOS directory.
-or-
- Unload Vsafe before running Windows.
Additional query words: 6.22 6.00 6 nav norton nortons norton's anti virus anti-virus nav& sys nav&.sys stepup
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Keywords :
Technology : kbWin3xSearch kbZNotKeyword3 kbWin300 kbWin300a kbWin310 kbWin311 kbMSDOSSearch kbMSDOS621 kbMSDOS622 kbMSDOS620 kbMSDOS600
Version : MS-DOS:6.0,6.2,6.21,6.22; WINDOWS:3.0,3.0a,3.1,3.11
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