Article: Q83585
Product(s): Microsoft Windows 95.x Retail Product
Version(s): 3.0,3.0a,3.1,3.11
Operating System(s):
Keyword(s):
Last Modified: 04-FEB-2002
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The information in this article applies to:
- Microsoft Windows versions 3.0, 3.0a, 3.1, 3.11
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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.
CAUSE
=====
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:
1. Type
debug
2. 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.
3. To exit DEBUG, at the hyphen (-) prompt, type
Q
Additional query words: 3.0 3.0a 3.1
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Keywords :
Technology : kbWin3xSearch kbZNotKeyword3 kbWin300 kbWin300a kbWin310 kbWin311
Version : :3.0,3.0a,3.1,3.11
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