FIX: The CAPS LOCK key or the NUM LOCK key does not function correctly in a remote desktop session in Windows Embedded CE 6.0 R3

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Article ID: 2175812 - View products that this article applies to.
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SYMPTOMS

Assume that you run a Windows Embedded CE 6.0 R3-based image on a target device. The Windows Embedded CE 6.0 R3-based image supports Remote Desktop Protocol (RDP). In this situation, the CAPS LOCK key or the NUM LOCK key does not function correctly in a remote desktop session.

Consider the following example scenarios.

Scenario 1
  • You try to establish a remote desktop session from the device to a terminal server.
  • You press CAPS LOCK or NUM LOCK many times before the remote desktop session is established.
  • When the remote desktop session is established, you type an alphabetical character.
Scenario 2
  • You establish a remote desktop session from the device to a terminal server.
  • You minimize the window of the remote desktop session.
  • You press CAPS LOCK or NUM LOCK on the keyboard.
  • You type an alphabetical character in the remote desktop session.
In these example scenarios, the letter case of the output characters is incorrect. For example, the output is lowercase even though the CAPS LOCK indicator is lit. Or, the output is uppercase even though the CAPS LOCK indicator is not lit.

CAUSE

This issue occurs because the GetKeyState function does not return the status of the CAPS LOCK key or the NUM LOCK key correctly. Therefore, the terminal server does not receive the correct status from the device.

RESOLUTION

Software update information

A supported software update is now available from Microsoft as Windows Embedded CE 6.0 Platform Builder Monthly Update (February 2011). You can confirm this by scrolling to the "File information" section of this article. The package file name contains the product version, date, Knowledge Base article number, and processor type. The package file name format is:
Product version-yymmdd-kbnnnnnn-processor type
For example: Wincepb50-060503-kb917590-armv4i.msi is the ARMV4i Windows Embedded CE 5.0 Platform Builder fix that is documented in KB article 917590 and that is contained in the May 2006 monthly update. To resolve this problem immediately, click the following article number for information about obtaining Windows Embedded CE Platform Builder and core operating system software updates:
837392 How to locate core operating system fixes for Microsoft Windows Embedded CE Platform Builder products
Note This Windows Embedded CE 6.0 Monthly Update is also available for download from the following Microsoft Download Center website:
Windows Embedded CE 6.0 Updates

Prerequisites

To apply this software update, you must have all previously issued software updates for this product installed.

Restart requirement

After you install this software update, you must perform a clean build of the whole platform. To do this, use one of the following methods:
  • On the Build menu, click Clean Solution, and then click Build Solution.
  • On the Build menu, click Rebuild Solution.
You do not have to restart the computer after you apply this software update.

Update replacement information

This update does not replace any updates.

File information

The English version of this software update package 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.
Installer files
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File nameFile sizeDateTime
Wincepb60-110210-kb2175812-armv4i.msi15,981,56811-Feb-201119:29
Wincepb60-110210-kb2175812-mipsii.msi15,454,20811-Feb-201119:29
Wincepb60-110210-kb2175812-mipsii_fp.msi15,456,25611-Feb-201119:29
Wincepb60-110210-kb2175812-mipsiv.msi15,574,52811-Feb-201119:29
Wincepb60-110210-kb2175812-mipsiv_fp.msi15,577,08811-Feb-201119:29
Wincepb60-110210-kb2175812-sh4.msi15,108,60811-Feb-201119:29
Wincepb60-110210-kb2175812-x86.msi13,858,30411-Feb-201119:29
Files that are included in this hotfix package
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File nameFile sizeDateTimePath
Windows embedded ce 6.0_update_kb2175812.htm7,79210-Feb-201120:41110210_kb2175812
Tscaxctrl.lib34,777,31602-Feb-201123:18Public\Rdp\Oak\Lib\Armv4i\Debug
Tscaxctrl.lib18,751,44202-Feb-201123:18Public\Rdp\Oak\Lib\Armv4i\Retail
Tscaxctrl.lib34,532,13002-Feb-201123:19Public\Rdp\Oak\Lib\Mipsii\Debug
Tscaxctrl.lib17,956,94802-Feb-201123:19Public\Rdp\Oak\Lib\Mipsii\Retail
Tscaxctrl.lib34,535,01202-Feb-201123:21Public\Rdp\Oak\Lib\Mipsii_fp\Debug
Tscaxctrl.lib17,959,86602-Feb-201123:20Public\Rdp\Oak\Lib\Mipsii_fp\Retail
Tscaxctrl.lib35,145,10002-Feb-201123:22Public\Rdp\Oak\Lib\Mipsiv\Debug
Tscaxctrl.lib18,074,25002-Feb-201123:21Public\Rdp\Oak\Lib\Mipsiv\Retail
Tscaxctrl.lib35,147,01402-Feb-201123:23Public\Rdp\Oak\Lib\Mipsiv_fp\Debug
Tscaxctrl.lib18,076,27002-Feb-201123:23Public\Rdp\Oak\Lib\Mipsiv_fp\Retail
Tscaxctrl.lib31,278,53802-Feb-201123:24Public\Rdp\Oak\Lib\Sh4\Debug
Tscaxctrl.lib16,877,64602-Feb-201123:24Public\Rdp\Oak\Lib\Sh4\Retail
Tscaxctrl.lib29,647,45402-Feb-201123:17Public\Rdp\Oak\Lib\X86\Debug
Tscaxctrl.lib16,772,16802-Feb-201123:17Public\Rdp\Oak\Lib\X86\Retail

STATUS

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

MORE INFORMATION

For more information about software update terminology, 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

Properties

Article ID: 2175812 - Last Review: March 9, 2011 - Revision: 1.0
APPLIES TO
  • Windows Embedded CE 6.0 R3
Keywords: 
kbqfe kbfix kbsurveynew kbexpertiseadvanced atdownload KB2175812

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