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Reliability Rollup 3179949 for the .NET Framework 4.6 and 4.6.1 on Windows Vista SP2, Windows 7 SP1, Windows Server 2008 SP2, and Windows Server 2008 R2 SP1

This article describes the reliability rollup 3179949 for the Microsoft .NET Framework on Windows Vista Service Pack 2 (SP2), Windows 7 SP1, Windows Server 2008 SP2, and Windows Server 2008 R2 SP1. This update includes cumulative improvements in reliability in the .NET Framework 4.6 and 4.6.1. 

Specifically, this update contains a cumulative account of all limited distribution release (LDR) updates that have been shipped to date. No new features are introduced in this update. This update provides important reliability improvements in the following .NET Framework components, among others:

  • Common Language Runtime
  • Windows Forms
  • Windows Presentation Foundation
  • Windows Communication Foundation
See the prerequisites for applying this update.
More information

How to obtain this update

Method 1:

This update is available from Windows Update, as an Optional update.

Method 2:

To obtain the stand-alone package for this update, go to the Microsoft Update Catalog website.


To apply this update, you must have the .NET Framework 4.6 or 4.6.1 installed, as appropriate.

You must also have Windows Installer 3.1 or a later version installed on the computer. To obtain the latest version of Windows Installer, go to the following Microsoft website:

Command-line switches for this update

For information about the various command-line switches that are supported by this update, visit Command-Line Options on MSDN site.

Restart requirement

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

Update removal information

To remove this update, use the Add or Remove Programs item or the Programs and Features item in Control Panel.

File information

For a list of the files that are provided in this reliability update, download the file information for reliability update 3179949:

DownloadDownload the x86 package file information now.

DownloadDownload the x64 package file information now.

Article ID: 3179949 - Last Review: 09/27/2016 20:54:00 - Revision: 3.0

Microsoft .NET Framework 4.6, Microsoft .NET Framework 4.6.1

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