Knowledge Base

Some later keystrokes are interpreted as part of the previous keyboard shortcut in the Terminal Services session of a Remote Desktop window on a Windows Vista-based computer

Article ID: 938080

Article Last Modified on 9/11/2007

APPLIES TO

Windows Vista Enterprise 64-bit Edition
Windows Vista Home Premium 64-bit Edition
Windows Vista Ultimate 64-bit Edition
Windows Vista Business
Windows Vista Business 64-bit Edition
Windows Vista Enterprise
Windows Vista Home Premium
Windows Vista Ultimate

SYMPTOMS

Consider the following scenario.

You type a keyboard shortcut on a Windows Vista-based computer.
You are working in a Terminal Services session that was started by using Remote Desktop Connection 6.0 (RDC 6.0).

In this scenario, some keys in the keyboard shortcut may remain active. Therefore, in the Terminal Services session of the Remote Desktop window, some later keystrokes are interpreted as part of the previous keyboard shortcut. For example, this problem occurs if the following conditions are true:

You lock the local computer by pressing the Windows logo key+L keyboard shortcut.
You unlock the local computer.
The Remote Desktop window is active.

When you press any key, various Windows keyboard shortcuts occur in the Terminal Services session. For example, when you press E in the Terminal Services session, Windows Explorer starts as if the Windows logo key is still held down.

Note Windows Explorer should start when you press the Windows logo key+E keyboard shortcut.

CAUSE

This issue occurs because of an error in Remote Desktop Connection 6.0. When you press a keyboard shortcut on the local computer, Remote Desktop Connection 6.0 may send only the "key-down" message to the remote session. Remote Desktop Connection 6.0 may not send the "key-up" message for certain modifier keys such as the ALT, SHIFT, and Windows logo keys.

RESOLUTION

Hotfix information

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next service pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites

No prerequisites are required.

Restart requirement

You do not have to restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

You do not have to make any changes to the registry.

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.

Windows Vista, x86-based versions

File name	File version	File size	Date	Time	Platform
Update.mum	Not Applicable	1,806	05-Jun-2007	14:41	Not Applicable
X86_af7377a27733d119afe9929fddc6f6a8_31bf3856ad364e35_6.0.6000.20612_none_af451b4837d6175a.manifest	Not Applicable	722	05-Jun-2007	14:41	Not Applicable
X86_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.0.6000.20612_none_2e8894a3e1a596ce.manifest	Not Applicable	168,920	05-Jun-2007	14:43	Not Applicable
Aaclient.dll	6.0.6000.20612	116,736	05-Jun-2007	02:58	x86
Aaclient.mof	Not Applicable	1,097	07-Jan-2007	05:26	Not Applicable
Mstscax.dll	6.0.6000.20612	1,866,240	05-Jun-2007	02:59	x86
Mstscax.mof	Not Applicable	1,967	07-Jan-2007	05:26	Not Applicable
Tsgqec.dll	6.0.6000.20612	36,352	05-Jun-2007	03:00	x86

Windows Vista, x64-based versions

File name	File version	File size	Date	Time	Platform
Amd64_2f717519b2475113a4a958128df893b8_31bf3856ad364e35_6.0.6000.20612_none_524aa2bfb5264ff0.manifest	Not Applicable	1,092	05-Jun-2007	14:41	Not Applicable
Amd64_microsoft-windows-t..s-clientactivexcore_31bf3856ad364e35_6.0.6000.20612_none_8aa730279a030804.manifest	Not Applicable	168,982	05-Jun-2007	14:47	Not Applicable
Update.mum	Not Applicable	2,056	05-Jun-2007	14:41	Not Applicable
Aaclient.dll	6.0.6000.20612	130,048	05-Jun-2007	04:09	x64
Aaclient.mof	Not Applicable	1,097	07-Jan-2007	05:26	Not Applicable
Mstscax.dll	6.0.6000.20612	2,188,288	05-Jun-2007	04:12	x64
Mstscax.mof	Not Applicable	1,967	07-Jan-2007	05:26	Not Applicable
Tsgqec.dll	6.0.6000.20612	27,648	05-Jun-2007	04:15	x64

STATUS

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

MORE INFORMATION

By default, RDC 6.0 is included in Windows Vista. You can install RDC 6.0 in Microsoft Windows XP and in Microsoft Windows Server 2003.

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

824684 Description of the standard terminology that is used to describe Microsoft software updates

If you use RDC 6.0 on a Microsoft Windows XP-based computer or on a Microsoft Windows Server 2003-based computer, apply hotfix 936970. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

936970 Error message when you try to save a document in a 2007 Office program to a redirected drive in Windows Vista: "There has been a network or file permission error"

For more information, click the following article number to view the article in the Microsoft Knowledge Base:

925876 Remote Desktop Connection (Terminal Services Client 6.0)