DOCUMENT:Q105731  22-NOV-1993  [W_NT]
TITLE   :SERMOUSE.SYS: Serial Mouse Problems Under Windows NT
PRODUCT :Windows NT
PROD/VER:3.10
OPER/SYS:WINDOWS
KEYWORDS:BUGLIST3.10 FIXLIST3.10.003

------------------------------------------------------------------
The information in this article applies to:

 - Microsoft Windows NT operating system version 3.1
 - Microsoft Windows NT Advanced Server version 3.1
------------------------------------------------------------------


SYMPTOMS
========

Your serial mouse may fail to work under Windows NT. The mouse seems
to be detected correctly by NTDETECT.COM, but the following
description appears in Event Viewer's log:

   The source is mouclass description was could not locate the device
   object for one or more pointer port devices.

CAUSE
=====

This problem is caused by the SERMOUSE.SYS driver. Device detection
fails when the mouse is plugged into a 3rd-party serial port adapter
that uses the Winbond chip. This problem occurs with any Combi mouse
that has a serial number in the 3xxx range.

RESOLUTION
==========

You can obtain a fix for this problem (for x86-based computers) by
accessing CompuServe or Internet. The file you need to download is
SERMOU.EXE, a self-extracting file.

Internet
--------

SERMOU.EXE is located on the GOWINNT.MICROSOFT.COM server in the
following directory:

   cs\winnt\unsup-ed\fixes\sermou

CompuServe
----------

SERMOU.EXE is located in the WINNT forum in Library 2.

Using SERMOUSE.SYS
------------------

To use the new SERMOUSE.SYS file, perform the following steps:

1. Rename the current SERMOUSE.SYS file in the SYSTEM32\DRIVERS
   directory.

2. Copy the new SERMOUSE.SYS file to the same location in Step 1.

3. Shut down Windows NT and restart your computer

This fix is provided as is, and is not supported by Microsoft Product
Support Services. Although this file was not made available in the
recent update of Windows NT (U.S. Service Pack 1), a tested and
supported version of this file will be included in the next update.

Additional reference words: 3.10 SerMouse NTDetect
KBCategory:
KBSubCategory: HRDWR

=============================================================================

THE INFORMATION PROVIDED IN THE MICROSOFT KNOWLEDGE BASE IS
PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND.  MICROSOFT DISCLAIMS
ALL WARRANTIES, EITHER EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.  IN NO
EVENT SHALL MICROSOFT CORPORATION OR ITS SUPPLIERS BE LIABLE FOR
ANY DAMAGES WHATSOEVER INCLUDING DIRECT, INDIRECT, INCIDENTAL,
CONSEQUENTIAL, LOSS OF BUSINESS PROFITS OR SPECIAL DAMAGES, EVEN IF
MICROSOFT CORPORATION OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES.  SOME STATES DO NOT ALLOW THE EXCLUSION
OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES
SO THE FOREGOING LIMITATION MAY NOT APPLY.

Copyright Microsoft Corporation 1993.