Microsoft KB Archive/226015

= Microsoft IntelliMouse Is Not Detected or Causes Hang in Windows 2000 =

Article ID: 226015

Article Last Modified on 2/23/2007

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APPLIES TO


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

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This article was previously published under Q226015



SYMPTOMS
If there is a Microsoft IntelliMouse connected to your computer, the IntelliMouse may not be detected or your computer may stop responding (hang).



CAUSE
This behavior can occur for any of the following reasons:
 * The wheel mouse is an Original Equipment Manufacturer (OEM) wheel mouse other than the mouse that was originally included with your computer.
 * The wheel mouse is connected to a switch box with an unreliable 8042 port.

The Microsoft retail wheel mouse has additional circuitry that allows it to be queried by the operating system. If a wheel mouse is connected to the computer, it returns a string identifying itself as such. Note that running the query does not enable the wheel mouse; it simply lets the operating system know that a wheel mouse is attached. Running the query is safe; it does not cause the computer to hang.



RESOLUTION
To resolve this issue, use any of the following methods:
 * Use an OEM wheel mouse that has been tested and confirmed to work with your computer.
 * Use a Microsoft retail wheel mouse that contains the additional circuitry.

Also, check the Advanced Settings tab in the mouse's properties in Device Manager. Make sure that the enabling code is not being run by verifying that Assume Wheel Is Present is selected in the Wheel Detection box.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed at the beginning of this article.

Additional query words: undetected

Keywords: kbhardware kbprb KB226015

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