Microsoft KB Archive/149446

= APC Powerchute Disables Serial Mouse in Boot.ini =

Article ID: 149446

Article Last Modified on 2/21/2007

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APPLIES TO


 * Microsoft Windows 2000 Server
 * Microsoft Windows 2000 Advanced Server
 * Microsoft Windows 2000 Professional Edition
 * Microsoft Windows 2000 Datacenter Server
 * Microsoft Windows NT Workstation 3.5
 * Microsoft Windows NT Workstation 3.51
 * Microsoft Windows NT Workstation 4.0 Developer Edition
 * Microsoft Windows NT Server 3.5
 * Microsoft Windows NT Server 3.51
 * Microsoft Windows NT Server 4.0 Standard Edition

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This article was previously published under Q149446



SYMPTOMS
When you set up American Power Conversion (APC) Powerchute software, the NoSerialMice:COMx option is added to the Boot.ini file as follows:

multi(0)disk(0)rdisk(0)partition(1)\WINNT35="Windows NT Workstation

Version 3.51" /NoSerialMice:COMx

multi(0)disk(0)rdisk(0)partition(1)\WINNT35="Windows NT Workstation

Version 3.51 [VGA mode]" /basevideo /sos /NoSerialMice:COMx



CAUSE
The COMx device is set according to the COMx option that is selected during APC setup. If this COMx device is set incorrectly, or if it is in conflict with a pointing device already using the COMx port, the pointing device no longer functions due to an incorrect setting in Boot.ini.



RESOLUTION
To correct this problem, modify the Boot.ini file as follows:  On File Manager View menu, click By File Type and then click Show Hidden-System Files. Find Boot.ini in C:\ (or appropriate partition). On the File Manager menu, select Attributes and clear all file attributes. Edit the file using Notepad to contain the appropriate settings according to the following information:

/NoSerialMice - Disables the detection of serial mice on all COM ports.

/NoSerialMice:COMx - Disables the detection of serial mice on COMx, where x is the number of the port.

/NoSerialMice:COMx,y,z - Disables the detection of serial mice on COM x, COMy and COMz.

 Save and quit Notepad. Return the attribute permissions cleared in Step 3.</li> Restart the computer.</li></ol>

Additional query words: serial pointer devices mouclass sermouse boot

Keywords: kbprb kbsetup KB149446

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