This August 2017 Update for Windows Server 2008 Service Pack 2 (SP2), Windows 7 Service Pack 1 (SP1) and Windows Server 2008 R2 SP1 includes cumulative reliability improvements in the .NET Framework 4.5.2. We recommend that you apply this update as part of your regular maintenance routines. Before you install this update, see the "Prerequisites" and "Restart requirement" sections.
- If you install a language pack after you install this update, you must reinstall this update. Therefore, we recommend that you install any language packs that you need before you install this update. For more information, see Add language packs to Windows.
Quality and reliability improvements
In some cases, a .NET Framework remoting IPC listener thread can stop working because of a race condition in IPCServerChannel.
Additional information about this update
For more information about this update as it relates to Windows 7 SP1 and Windows Server 2008 R2 SP1, see the following article in the Microsoft Knowledge Base:
4035036 August 2017 Preview of the Quality Rollups for the .NET Framework 3.5.1, 4.5.2, 4.6, 4.6.1, 4.6.2, and 4.7 for Windows 7 SP1 and Windows Server 2008 R2 SP1: August 15, 2017
For more information about this update as it relates to Windows Server 2008 SP2, see the following article in the Microsoft Knowledge Base:
4035039 August 2017 Preview of the Quality Rollups for the .NET Framework 2.0 SP2, 4.5.2, 4.6, 4.6.1, 4.6.2 and 4.7 for Windows Server 2008 SP2: August 15, 2017
When you apply this update by using the interactive setup wizard on non-English locale systems, you notice that the interactive setup wizard dialog boxes contains some pseudo localized characters instead of localized content. This is a non-impacting, UI-only, setup issue that does not affect the deployment result or functionality of the update contents. Please apply this update to help secure your computer against vulnerabilities and the issues that are addressed by this update.
For more information about this issue, go to the following article in the Microsoft Knowledge Base:
4043564 Certain .NET Framework 4.5.2 updates contain pseudo non-English characters in the Setup Wizard UI
How to get this update
This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to get security updates automatically, see Windows Update: FAQ.
Microsoft Update Catalog
To get the stand-alone package for this update, go to one of the following on the Microsoft Update Catalog website:
- For Windows Server 2008 SP2, click here.
- For Windows 7 SP1 and Windows Server 2008 R2 SP1, click here.
Windows Software Update Services (WSUS)
On your WSUS server, follow these steps:
- Click Start, click Administrative Tools, and then click Microsoft Windows Server Update Services 3.0.
- Expand ComputerName, and then click Action.
- Click Import Updates.
- WSUS will open a browser window in which you may be prompted to install an ActiveX control. Install the ActiveX control to continue.
- Once the ActiveX control is installed, you will see the Microsoft Update Catalog screen. Type 4035039 for Windows Server 2008 SP2 or 4035036 for Windows 7 SP1 and Windows Server 2008 R2 SP1 in the Search box, and then click Search.
- Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Click Add to add them to your basket.
- When you have selected all the packages you need, click View Basket.
- Click Import to import the packages to your WSUS server.
- Click Close once the packages have been imported to return to WSUS.
The updates are now available for installation through WSUS.
To apply this update, you must have the .NET Framework 4.5.2 installed.
You must restart the computer after you apply this update if any affected files are being used. We recommend that you exit all .NET Framework-based applications before you apply this update.
Update replacement information
This update does not replace any previously released update.