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Article ID: 2769674 - Last Review: November 20, 2012 - Revision: 1.0

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Introduction

This article describes hotfix rollup 2769674 for the Microsoft .NET Framework 4.5 in Windows 8 and Windows Server 2012. This hotfix rollup is fixes stability, reliability, and performance issues in the .NET Framework 4.5.

Resolution

Hotfix Information

A supported hotfix is now available from Microsoft. However, it is intended to correct only the problem that this article describes. Apply it only to systems that are experiencing this specific problem.

To resolve this problem, contact Microsoft Customer Support Services to obtain the hotfix. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, visit the following Microsoft website:
http://support.microsoft.com/contactus/?ws=support (http://support.microsoft.com/contactus/?ws=support)
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

To apply this hotfix, you must have the Microsoft .NET Framework 4.5 installed in Windows 8 or Windows Server 2012.

Restart requirement

You may have to restart the computer after you apply this hotfix if any affected files are being used. We recommend that you close all .NET Framework-based applications before you apply this hotfix.

Hotfix replacement information

This hotfix package does not replace a previously released hotfix package.

File information

The global 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.
For all supported x86-based versions of Windows 8
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
System.windows.forms.dll4.0.30319.190354,806,14412-Oct-201200:36x86
Mscorlib.dll4.0.30319.190355,171,16812-Oct-201200:36x86
Normidna.nlpNot Applicable59,34206-Jul-201220:03Not Applicable
Normnfc.nlpNot Applicable47,07606-Jul-201220:03Not Applicable
Normnfd.nlpNot Applicable40,56606-Jul-201220:03Not Applicable
Normnfkc.nlpNot Applicable67,80806-Jul-201220:03Not Applicable
Normnfkd.nlpNot Applicable61,71806-Jul-201220:03Not Applicable
Clr.dll4.0.30319.190356,876,62412-Oct-201200:36x86
Culture.dll4.0.30319.1903554,75212-Oct-201200:36x86
Locale.nlpNot Applicable419,69612-Oct-201200:36Not Applicable
Mscordacwks.dll4.0.30319.190351,299,44012-Oct-201200:36x86
Mscordbi.dll4.0.30319.190351,096,67212-Oct-201200:36x86
Sos.dll4.0.30319.19035746,97612-Oct-201200:36x86
For all supported x64-based versions of Windows 8 and Windows Server 2012
Collapse this tableExpand this table
File nameFile versionFile sizeDateTimePlatform
Mscorlib.dll4.0.30319.190355,120,48012-Oct-201200:36x64
Normidna.nlpNot Applicable59,34206-Jul-201220:02Not Applicable
Normnfc.nlpNot Applicable47,07606-Jul-201220:02Not Applicable
Normnfd.nlpNot Applicable40,56606-Jul-201220:02Not Applicable
Normnfkc.nlpNot Applicable67,80806-Jul-201220:02Not Applicable
Normnfkd.nlpNot Applicable61,71806-Jul-201220:02Not Applicable
Clr.dll4.0.30319.190359,801,69612-Oct-201200:36x64
Culture.dll4.0.30319.1903563,45612-Oct-201200:36x64
Locale.nlpNot Applicable419,69612-Oct-201200:36Not Applicable
Mscordacwks.dll4.0.30319.190351,742,83212-Oct-201200:36x64
Mscordbi.dll4.0.30319.190351,497,07212-Oct-201200:36x64
Sos.dll4.0.30319.19035785,35212-Oct-201200:36x64
System.windows.forms.dll4.0.30319.190354,806,14412-Oct-201200:36x86
System.windows.forms.dll4.0.30319.190354,806,14412-Oct-201200:36x86
Mscorlib.dll4.0.30319.190355,171,16812-Oct-201200:36x86
Normidna.nlpNot Applicable59,34206-Jul-201220:03Not Applicable
Normnfc.nlpNot Applicable47,07606-Jul-201220:03Not Applicable
Normnfd.nlpNot Applicable40,56606-Jul-201220:03Not Applicable
Normnfkc.nlpNot Applicable67,80806-Jul-201220:03Not Applicable
Normnfkd.nlpNot Applicable61,71806-Jul-201220:03Not Applicable
Clr.dll4.0.30319.190356,876,62412-Oct-201200:36x86
Culture.dll4.0.30319.1903554,75212-Oct-201200:36x86
Locale.nlpNot Applicable419,69612-Oct-201200:36Not Applicable
Mscordacwks.dll4.0.30319.190351,299,44012-Oct-201200:36x86
Mscordbi.dll4.0.30319.190351,096,67212-Oct-201200:36x86
Sos.dll4.0.30319.19035746,97612-Oct-201200:36x86

Issue that this hotfix rollup resolves

Assume that you have a .NET Framework 4.5-based Windows Form application. When you click a menu item to open a child window in the application, interactions with the menu and child window behave incorrectly.

For example, you may experience the following:
  • When you open a context menu in the child window, the main window takes the focus.
  • You cannot use mnemonics to access a menu item.
This issue occurs because the IMessageFilter interface is unhooked too aggressively. Therefore, the .NET Framework 4.5 does not filter menu-related window messages.

Note For more information about how to use the IMessageFilter interface, go to the following MSDN website:
How to define a message filter interface (http://msdn.microsoft.com/en-us/library/system.windows.forms.imessagefilter.aspx)

Applies to
  • Microsoft .NET Framework 4.5
Keywords: 
kbqfe kbhotfixserver kbfix kbsurveynew kbexpertiseadvanced KB2769674
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