Hotfix rollup 3064715 (Web Installer) for the .NET Framework 4.5, 4.5.1, 4.5.2 on Windows Vista SP2, Windows 7 SP1, Windows 8, Windows 8.1, Windows Server 2008 SP2, Windows Server 2008 R2 SP1, Windows Server 2012, Windows Server 2012 R2, Windows RT 8.1

This article describes hotfix rollup 3064715 that is available for the Microsoft .NET Framework 4.5.2, the .NET Framework 4.5.1, and the .NET Framework 4.5. For more information about the issues that the hotfix rollup resolves, see the "Issues that this hotfix rollup resolves" section.

The web installer is a small package (less than one megabyte) that automatically determines and downloads only the components that are applicable for a particular platform.
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: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.
Hotfix information
To resolve this issue, WPF forces a synchronization of the mouse and touch stacks on an initial touch down. This forces an immediate hit test and correctly selects the button for promotion.

More information


To apply this hotfix, you must have the .NET Framework 4.5.2, the .NET Framework 4.5.1, or the .NET Framework 4.5 installed.

Restart requirement

You 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.

Detecting the installed hotfix

To detect the successful installation of hotfix rollup 3064715 for the .NET Framework 4.5 and later versions, check the release keyword to determine the installed version. To be forward-compatible, you can check for a value that is greater than or equal to the value that is listed in this table.

Hotfix rollup versionValue of the release DWORD
Hotfix rollup 3064715 for the .NET Framework 4.5 and later versions379981

For more information about how to check installed versions of the .NET Framework, see the following MSDN article:

Issues that this hotfix rollup resolves

Issue 1
Assume that you use a Windows Presentation Foundation (WPF) application that has touch/stylus input. When the Windows is activated, you click a button. However, the button is not successfully clicked. If you are a developer, you cannot see the click event that should be raised for the button. If you are a general user, you cannot see the click action graphics, and no action that is associated with the button occurs.

This issue occurs because of a synchronization issue with the mouse and touch stack. The initial activation of the Window was not generating a correct hit test to the button. Therefore, WPF would not promote the touch to a click.

Issue 2

Assume that you are running a Windows Forms application. When the application disposes a System.Windows.Forms.MonthCalendar control in certain cases, the following InvalidOperationException exception will be thrown:

Operation is not valid due to the current state of the object.


Article ID: 3064715 - Last Review: 06/25/2015 17:04:00 - Revision: 2.0

Microsoft .NET Framework 4.5.2, Microsoft .NET Framework 4.5.1, Microsoft .NET Framework 4.5

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