Microsoft KB Archive/256003

= SMS: Cannot Control Mouse with Toshiba Driver During Remote Control Session =

Article ID: 256003

Article Last Modified on 10/27/2006

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APPLIES TO


 * Microsoft Systems Management Server 2.0 Standard Edition
 * Microsoft Systems Management Server 2.0 Service Pack 1

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This article was previously published under Q256003



SYMPTOMS
When you are remotely controlling a client computer that uses the Toshiba mouse driver version 2.4.3, the mouse pointer on the client computer moves to a different screen location than in the administrator's Remote Control window. When you move the mouse, the scale of the mouse pointer movement is also incorrect. For example, moving the mouse pointer one inch in the administrator's Remote Control window moves the corresponding mouse pointer on the client computer by two inches.



CAUSE
The unit of mouse movement (known as a "mickey") is scaled up by the Toshiba mouse driver.



WORKAROUND
To work around this behavior, use one of the following methods:
 * Uninstall the Toshiba mouse driver on the client computer and install a standard Windows NT mouse driver.
 * Adjust the mouse movement speed to the slowest setting.



MORE INFORMATION
The Remote Control agent uses the virtual keyboard/mouse driver (Kbstuff.sys) to send information to the Windows NT keyboard and mouse drivers during a Remote Control session. This driver sends the viewer's mouse and keyboard movement directly to the client's keyboard and mouse driver for processing. A unit of mouse movement (called a "mickey") is used by all mouse drivers to determine how far to move a mouse pointer on the screen. The Systems Management Server (SMS) virtual keyboard driver sends the number of "mickeys" that have been generated by the viewer's mouse to the client's mouse driver where it is processed. The mouse pointer is moved the appropriate distance on the the client's screen.

The "mickeys" that are passed to the Toshiba mouse driver version 2.4.3 by the SMS virtual keyboard driver are scaled up by the Toshiba mouse driver to a larger number than is being sent. The Toshiba mouse driver multiplies the number of "mickeys" passed by the SMS viewer by some scaling factor, resulting in a corresponding increase in mouse movement on the target client's screen.

Additional query words: prodsms

Keywords: kbprb kbremoteprog KB256003

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