Mouse pointer movement is not smooth if you use Microsoft Terminal Services Advanced Client 5.1 or later (830209)



The information in this article applies to:

  • Microsoft Windows Server 2003, Web Edition
  • Microsoft Windows Server 2003, Standard Edition
  • Microsoft Windows Server 2003, Enterprise Edition
  • Microsoft Windows Server 2003, 64-Bit Enterprise Edition

Important This article contains information about how to modify the registry. Make sure to back up the registry before you modify it. Make sure that you know how to restore the registry if a problem occurs. For more information about how to back up, restore, and modify the registry, click the following article number to view the article in the Microsoft Knowledge Base:

256986 Description of the Microsoft Windows registry

SYMPTOMS

On a client computer, if you use Microsoft Terminal Services Advanced Client 5.1 or later to connect to a terminal server (that is, a server that has Terminal Server enabled), you may notice that the mouse pointer movement is not smooth; it may move in small jerks. This is most noticeable when you use a painting program, such as Microsoft Paint, or the drawing tools in a Microsoft Office program.

CAUSE

This behavior occurs because the mouse movement update interval is 120 milliseconds in Terminal Services Advanced Client 5.1 or later and the value cannot be adjusted to a smaller interval.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft, but it is only intended to correct the problem that is described in this article. Only apply it to systems that are experiencing this specific problem. This hotfix may receive additional testing. Therefore, if you are not severely affected by this problem, Microsoft recommends that you wait for the next Microsoft Windows Server 2003 service pack that contains this hotfix.

To resolve this problem immediately, contact Microsoft Product Support Services to obtain the hotfix. For a complete list of Microsoft Product Support Services phone numbers and information about support costs, visit the following Microsoft Web site:Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart your computer after you apply this hotfix. However, once you install the hotfix, you must add a registry value as described in the "More Information" section.

Hotfix replacement information

This hotfix does not replace any other hotfixes.

File information

The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.
   Date         Time   Version     Size     File name       Platform
   -----------------------------------------------------------------
   07-Oct-2003  20:29  6.0.2600.0  498,176  Tswebsetup.exe  x86

MORE INFORMATION

Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall your operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.To enable this hotfix, follow these steps:
  1. On the Terminal Server client computer, start Registry Editor, and then locate the following registry subkey:

    HKEY_CURRENT_USER\SOFTWARE\Microsoft\Terminal Server Client

  2. Right-click Terminal Server Client, and then point to New.
  3. Click DWORD, and then type Min Send Interval. Double-click this entry, and then set the value to 10.
  4. Quit Registry Editor, and then restart the computer.

STATUS

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.

Modification Type:MajorLast Reviewed:7/13/2006
Keywords:kbHotfixServer kbQFE kbBug kbfix kbQFE kbWinServ2003preSP1fix KB830209 kbAudITPRO