Windows Err Msg: Unable to Initialize Ports (Control Panel)
ID: Q83585
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The information in this article applies to:
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Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11
SYMPTOMS
When you try to access the 386 Enhanced icon in the Control Panel, the
following error may appear:
Unable to initialize ports
After this message is displayed, the 386 Enhanced window can be
accessed; however, no ports appear in the Device Contention box.
CAUSES
This problem can be caused by either of the following:
- There are no Base I/O address values in the BIOS table for any of
the COM or parallel ports in the BIOS table.
-or-
- There is no DEVICE=*VCD statement in the [386Enh] section of the
SYSTEM.INI.
NOTE: VCD is the virtual communications device driver that virtualizes
the COM ports. It arbitrates COM port usage between virtual machines.
MORE INFORMATION
To check the Base I/O address values, proceed as follows:
- Type
debug
- At the hyphen (-) prompt, type
d40:0
For example:
debug
-d40:0
After you type debug d40:00, the following HEX string appears:
0040:0000 F8 03 F8 02 00 00 00 00-78 03 00 00 00 00 00 0
The values displayed may vary from machine to machine (the values
listed above are the most common values).
The error message occurs if all the values after 0040:0000 are
zeros.
- To exit DEBUG, at the hyphen (-) prompt, type
Q
Additional query words:
3.0 3.0a 3.1
Keywords :
Version : WINDOWS:3.0,3.0a,3.1,3.11
Platform : WINDOWS
Issue type :
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