Microsoft KB Archive/196460

= Improving Mouse Movements in Terminal Server Applications =

Article ID: 196460

Article Last Modified on 1/23/2007

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APPLIES TO


 * Microsoft Windows NT Server 4.0, Terminal Server Edition
 * Microsoft Windows 98 Standard Edition
 * Microsoft Windows 95
 * Microsoft Windows NT Workstation 4.0 Developer Edition

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This article was previously published under Q196460



IMPORTANT: This article contains information about editing the registry. Before you edit the registry, make sure you understand how to restore it if a problem occurs. For information on how to do this, view the "Restoring the Registry" online Help topic in Regedit.exe or the "Restoring a Registry Key" online Help topic in Regedt32.exe.



SUMMARY
When you use some applications in Windows Terminal Server, the mouse may jump or not move in a controlled fashion. This behavior has been observed in computer-aided design (CAD) programs, but may occur anywhere that precision mouse control is necessary.



MORE INFORMATION
By default, the Terminal Server client sends mouse strokes to the Terminal Server at an interval of 100 ms. The performance of the mouse can be improved by lowering this setting through the registry. Please note that these are client entries.

WARNING: Using Registry Editor incorrectly can cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that problems resulting from the incorrect use of Registry Editor can be solved. Use Registry Editor at your own risk.

For information about how to edit the registry, view the "Changing Keys And Values" Help topic in Registry Editor (Regedit.exe) or the "Add and Delete Information in the Registry" and "Edit Registry Data" Help topics in Regedt32.exe. Note that you should back up the registry before you edit it. If you are running Windows NT, you should also update your Emergency Repair Disk (ERD).

  On the Terminal Server client computer, open the registry and go to the following key:      HKEY_CURENT_USER\Software\Microsoft\Terminal Server Client  Select Terminal Server Client. Create a new DWORD value. Name the new DWORD value: Min Send Interval Set the value to: 10.</ol>

You may want to adjust the value as needed for your particular network, weighing the additional network traffic against the enhanced mouse performance.

Keywords: kbinfo KB196460

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