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At 11:05 AM -0700 8/26/99, Carroll Slemaker wrote:
>Thanks to all who helpfully responded on this issue. It appears that the
>boot-time problem is well known and is primarily a Windows problem - Windows
>thinks the BMI COM port is a mouse. There must, however, be some
>contributing factor within the BMI box also because I never had such a
>problem with my Signal/cable box. In any event, since I now know the cause,
>it's a minor issue.
Microsoft has information on its web site on how to disable the
search for a serial mouse, if this is your problem.
The text is below,
Bob Fulks
-------------
How to Disable Detection of
Devices on Serial Ports
Article ID: Q131976
The information in this article applies to:
Microsoft Windows NT operating system version 3.1
Microsoft Windows NT Advanced Server version 3.1
Microsoft Windows NT Workstation versions 3.5, 3.51, 4.0
Microsoft Windows NT Server versions 3.5, 3.51, 4.0
SUMMARY
This article explains how to modify the Boot.ini file to disable the
detection of devices on COM ports.
When you start Windows NT, NTDETECT searches for the pointing
device (usually a mouse). In the course of this process, data is sent to
the serial (COM) ports. If a serial mouse is detected, Windows NT
disables the port so a device driver for the mouse can load instead. If
a device is not detected, Windows NT disables the port. A disabled
COM port does not display any information in Control Panel Ports.
MORE INFORMATION
To disable the detection of devices on COM ports in Windows NT:
1.Make a backup copy of the Boot.ini file.
2.Remove the hidden, system, and read-only attributes from the
Boot.ini file.
3.Using a text editor (such as Notepad) open the Boot.ini file.
4.Add the /NoSerialMice option to the end of each entry in the
[operating systems] section of Boot.ini. See the example below
for more information.
5.Save Boot.ini and quit Notepad.
6.Restore the hidden, system, and read-only attributes to the
Boot.ini file.
7.Shutdown and restart Windows NT.
The following is a sample of the Boot.ini file:
[boot loader]
timeout=3
default=multi(0)disk(0)rdisk(0)partition(1)\WINNT35
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT35="Windows NT Workstation
Version 3.51" /NoSerialMice
multi(0)disk(0)rdisk(0)partition(1)\WINNT35="Windows NT Workstation
Version 3.51 [VGA mode]" /basevideo /sos /NoSerialMice
NoSerialMice Syntax
/NoSerialMice - Disables the detection of serial mice on
all COM ports.
/NoSerialMice:COMx - Disables the detection of serial mice on
COM x, where x is the number of the port.
/NoSerialMice:COMx,y,z - Disables the detection of serial mice on
COM x, y and z.
NOTE: The /NoSerialMice option is not case sensitive.
Keywords : kbusage nthowto
Version : WinNT:3.1,3.5,3.51,4.0
Platform : winnt
Issue type : kbhowto
Last Reviewed: February 23, 1999
© 1999 Microsoft Corporation. All rights reserved. Terms of Use.
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