Installed Modem Detected as Serial Mouse on Restart (167394)
The information in this article applies to:
- Microsoft Windows NT Workstation 4.0
- Microsoft Windows NT Server 4.0
This article was previously published under Q167394 SYMPTOMS
During the setup of Remote Access Service (RAS) on a Windows NT 4.0 server
computer, a serial modem is installed and configured. When the server is
restarted, the modem is detected as Microsoft Serial Mouse and the modem is
no longer usable by RAS.
CAUSE
During startup of Windows NT, the NTDETECT program gathers information
about the hardware installed on the system including pointing devices such
as serial mice. If a mouse is detected, the system designates that port as
a mouse port and does not allow it to be used for other purposes, such as a
modem. Data is sent to the serial ports and the response from the modem is
interpreted as the presence of a mouse. The system will attempt to load
serial mouse software for that com port and prevent the use of the port for
serial modems.
RESOLUTION
Edit the boot.ini file and add to the end of the "Operating Systems" lines
one of the following;
/NoSerialMice (This disables detection of Serial Mice on all COM ports
-or-
/NoSerialMice:COMx (This disables detection of Serial Mice on only the
COM port specified by x)
For additional information, please see the following Microsoft Knowledge
Base article:
ARTICLE-ID: 131976
TITLE : How to Disable Detection of Devices on Serial Ports
| Modification Type: | Major | Last Reviewed: | 2/25/2002 |
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| Keywords: | kbprb kbsetup KB167394 |
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