WIN.COM Is Required to Upgrade Windows 3.0 to 3.1
ID: Q83745
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The information in this article applies to:
SUMMARY
If you upgrade a Windows 3.0 installation to Windows 3.1, and WIN.COM has
been renamed to something else, Windows 3.1 Setup will not perform an
upgrade, but will install on top of Windows 3.0. You will be left with a
nonfunctional setup, and may receive one or more of the following error
messages:
- Cannot find a device that may be needed to run Windows in 386
enhanced mode. You need to run the Setup program again.
- Invalid VxD dynamic link call to device number xxxx, service yyyy.
Your Windows configuration is invalid. Run the Windows Setup
program again to correct this problem. To continue running Windows,
press Y or ENTER. To quit the current program, press N. If you
continue running Windows, your system may become unstable. Do you
want to continue?
MORE INFORMATION
Windows 3.1 Setup looks for WIN.COM to determine if there is a current
installation of Windows 3.0 or Windows 3.1. If Setup finds a Windows 3.0
WIN.COM, it will perform an upgrade, keeping the Windows 3.0 configuration,
while adding the Windows 3.1 files and settings.
If no WIN.COM is found, Windows 3.1 will perform a standard
installation over the top of a Windows 3.0 installation. Windows will
not function correctly if this is done.
If you have renamed WIN.COM to something else, and the Windows 3.1
Setup fails, the following works around the problem:
- Rename WINVER.EXE to WIN.COM. This has the result of removing the
Windows 3.1 WINVER.EXE file, and creating a dummy WIN.COM.
- Rerun Windows 3.1 Setup. Setup will not find WINVER.EXE and will
find WIN.COM. Setup should complete normally.
NOTE: If the above procedure is not followed and Windows 3.1 is installed
again, the Windows 3.1 WINVER.EXE file will cause Windows 3.1 Setup to
improperly install the Windows 3.1 files and settings, and will not update
your printer drivers.
Additional query words:
Keywords :
Version : WINDOWS:3.1
Platform : WINDOWS
Issue type :