When you click the button on the taskbar for an inactive window to make that window active in Windows Vista or in Windows Server 2008, the currently active window is selected again

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Article ID: 955562 - View products that this article applies to.
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SYMPTOMS

Consider the following scenario. You have an application that has several owned WS_EX_APPWINDOW pop-up windows. Then, a user selects an inactive window in this application from the taskbar of a computer that is running Windows Server 2008 or Windows Vista. In this scenario, the currently active pop-up window is selected again.

For example, assume that an application has a main window and the owned pop-up windows C, D, and E. Pop-up window D is active. You click the button on the taskbar for pop-up window C or E to make that window active. Instead, pop-up window D remains the active window.

CAUSE

This problem occurs because the taskbar switches back to the last active pop-up window when the user selects a window from the taskbar. However, owned windows cannot track their last active pop-up window. Therefore, Vista finds the last active pop-up window for the root owner.

RESOLUTION

Hotfix information

A supported hotfix is 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 software update that contains this hotfix.

If the hotfix is available for download, there is a "Hotfix download available" section at the top of this Knowledge Base article. If this section does not appear, contact Microsoft Customer Service and Support to obtain the hotfix.

Note If additional issues occur or if 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. For a complete list of Microsoft Customer Service and Support telephone numbers or to create a separate service request, visit the following Microsoft Web site:
http://support.microsoft.com/contactus/?ws=support
Note The "Hotfix download available" form displays the languages for which the hotfix is available. If you do not see your language, it is because a hotfix is not available for that language.Important Windows Vista and Windows Server 2008 hotfixes are included in the same packages. However, only one of these products may be listed on the “Hotfix Request” page. To request the hotfix package that applies to both Windows Vista and Windows Server 2008, just select the product that is listed on the page.

Prerequisites

To apply this hotfix, the computer must be running Windows Vista or Windows Server 2008.

Restart requirement

You must restart the computer after you apply this hotfix.

Hotfix replacement information

This hotfix does not replace any other previously released hotfixes.

Registry information

To use this hotfix, 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 and Windows Server 2008 file information note

The .manifest and .mum files that are installed in each environment are listed separately in the "Additional file information for Windows Server 2008 and for Windows Vista" section. These files and their associated .cat (security catalog) files are critical to maintaining the state of the updated component. The .cat files are signed with a Microsoft digital signature. The attributes of these security files are not listed.
For all supported x86-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Explorer-ppdlic.xrm-msNot Applicable3,00530-Jul-200802:47Not Applicable
Explorer.exe6.0.6000.208852,923,52030-Jul-200801:04x86
Explorer-ppdlic.xrm-msNot Applicable3,03430-Jul-200802:59Not Applicable
Explorer.exe6.0.6001.222322,926,59230-Jul-200801:10x86
For all supported x64-based versions of Windows Server 2008 and Windows Vista
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Explorer-ppdlic.xrm-msNot Applicable3,00530-Jul-200803:12Not Applicable
Explorer.exe6.0.6000.208853,086,84830-Jul-200801:27x64
Explorer-ppdlic.xrm-msNot Applicable3,03430-Jul-200803:28Not Applicable
Explorer.exe6.0.6001.222323,080,19230-Jul-200801:39x64
Explorer.exe6.0.6000.208852,923,52030-Jul-200801:04x86
Explorer.exe6.0.6001.222322,926,59230-Jul-200801:10x86
For all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Explorer-ppdlic.xrm-msNot Applicable3,03430-Jul-200803:09Not Applicable
Explorer.exe6.0.6001.222323,906,04830-Jul-200801:31IA-64
Explorer.exe6.0.6001.222322,926,59230-Jul-200801:10x86

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, 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

Additional file information for Windows Server 2008 and for Windows Vista

Additional files for all supported x86-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File namePackage_1_for_kb955562~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,943
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_2_for_kb955562~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,781
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_3_for_kb955562~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,781
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client_1~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,367
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,711
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server_0~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,425
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server~31bf3856ad364e35~x86~~6.0.1.0.mum
File versionNot Applicable
File size1,430
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameX86_80cb8bcd98f23c0570b021788aa01865_31bf3856ad364e35_6.0.6000.20885_none_857f06ba1c340d5b.manifest
File versionNot Applicable
File size696
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameX86_8c600a4433825b2f2dd1428db92d4f62_31bf3856ad364e35_6.0.6001.22232_none_9df68e72729f4ac0.manifest
File versionNot Applicable
File size696
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameX86_microsoft-windows-explorer_31bf3856ad364e35_6.0.6000.20885_none_5006892f95efd8fa.manifest
File versionNot Applicable
File size129,106
Date (UTC)30-Jul-2008
Time (UTC)03:32
PlatformNot Applicable
File nameX86_microsoft-windows-explorer_31bf3856ad364e35_6.0.6001.22232_none_521fd69392f09231.manifest
File versionNot Applicable
File size127,220
Date (UTC)30-Jul-2008
Time (UTC)03:53
PlatformNot Applicable
Additional files for all supported x64-based versions of Windows Server 2008 and of Windows Vista
Collapse this tableExpand this table
File nameAmd64_87f23bc468184aceb164693ed1134ac8_31bf3856ad364e35_6.0.6001.22232_none_6f9a3cbc6b356771.manifest
File versionNot Applicable
File size1,042
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameAmd64_a528334128d003928f5bf1f840a6183d_31bf3856ad364e35_6.0.6000.20885_none_8f278030345bb20a.manifest
File versionNot Applicable
File size1,042
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameAmd64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6000.20885_none_ac2524b34e4d4a30.manifest
File versionNot Applicable
File size129,174
Date (UTC)30-Jul-2008
Time (UTC)03:53
PlatformNot Applicable
File nameAmd64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6001.22232_none_ae3e72174b4e0367.manifest
File versionNot Applicable
File size127,288
Date (UTC)30-Jul-2008
Time (UTC)04:08
PlatformNot Applicable
File namePackage_1_for_kb955562~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,171
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_2_for_kb955562~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,007
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_3_for_kb955562~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size2,007
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client_1~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,375
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_client~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,721
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server_0~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,433
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server~31bf3856ad364e35~amd64~~6.0.1.0.mum
File versionNot Applicable
File size1,438
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameWow64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6000.20885_none_b679cf0582ae0c2b.manifest
File versionNot Applicable
File size126,347
Date (UTC)30-Jul-2008
Time (UTC)03:28
PlatformNot Applicable
File nameWow64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6001.22232_none_b8931c697faec562.manifest
File versionNot Applicable
File size124,461
Date (UTC)30-Jul-2008
Time (UTC)03:49
PlatformNot Applicable
Additional files for all supported Itanium-based versions of Windows Server 2008
Collapse this tableExpand this table
File nameIa64_270619b3a1ba7bff5356f0d1ad31dcc9_31bf3856ad364e35_6.0.6001.22232_none_931ea8155eda4fef.manifest
File versionNot Applicable
File size1,040
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameIa64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6001.22232_none_52217a8992ee9b2d.manifest
File versionNot Applicable
File size127,254
Date (UTC)30-Jul-2008
Time (UTC)04:01
PlatformNot Applicable
File namePackage_1_for_kb955562~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size2,002
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server_0~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,429
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File namePackage_for_kb955562_server~31bf3856ad364e35~ia64~~6.0.1.0.mum
File versionNot Applicable
File size1,434
Date (UTC)30-Jul-2008
Time (UTC)22:42
PlatformNot Applicable
File nameWow64_microsoft-windows-explorer_31bf3856ad364e35_6.0.6001.22232_none_b8931c697faec562.manifest
File versionNot Applicable
File size124,461
Date (UTC)30-Jul-2008
Time (UTC)03:49
PlatformNot Applicable

Properties

Article ID: 955562 - Last Review: October 8, 2011 - Revision: 2.0
APPLIES TO
  • Windows Vista Enterprise 64-bit Edition
  • Windows Vista Home Basic 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 Basic
  • Windows Vista Home Premium
  • Windows Vista Ultimate
  • Windows Server 2008 Datacenter without Hyper-V
  • Windows Server 2008 Enterprise without Hyper-V
  • Windows Server 2008 for Itanium-Based Systems
  • Windows Server 2008 Standard without Hyper-V
  • Windows Server 2008 Datacenter
  • Windows Server 2008 Enterprise
  • Windows Server 2008 Standard
Keywords: 
kbexpertiseinter kbautohotfix kbfix kbqfe KB955562

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