Applies to:

Microsoft .NET Framework 4.6, .NET Framework 4.6.1, .NET Framework 4.6.2, .NET Framework 4.7, .NET Framework 4.7.1, .NET Framework 4.7.2

Summary

Security improvements

There are no new security improvements in this release.

Quality and reliability improvements

DS1

- Addresses an issue where after customers install the January 11th Security update and/or the January 18th update, applications that leverage .NET Framework System.DirectoryServices APIs specific to acquiring or setting Forest Trust Information may fail or crash with various errors, including an access violation (0xc0000005)

1 Directory Services (DS)

Important

  • All updates for .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 require that the d3dcompiler_47.dll update is installed. We recommend that you install the included d3dcompiler_47.dll update before you apply this update. For more information about the d3dcompiler_47.dll, see KB 4019990.

  • 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.

Known issues in this update

Symptom

Installing the latest .NET Framework February 2022 cumulative update will uninstall this update.

Workaround

Reinstall this update after installing the latest .NET Framework cumulative update.

How to obtain and install the update

Before installing this update

Prerequisite:

To apply this update, you must have .NET Framework 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, or 4.7.2 installed.

Install this update

Release Channel

Available

Next Step

Windows Update and Microsoft Update

No

None.  These changes will be included in the next update to this channel.

Microsoft Update Catalog

Yes

To get the standalone package for this update, go to the Microsoft Update Catalog website.

Windows Server Update Services (WSUS)

No

You can manually import these updates into Windows Server Update Services (WSUS) and Microsoft Endpoint Configuration Manager. For WSUS instructions, see WSUS and the Catalog Site. For Configuration Manger instructions, see Import updates from the Microsoft Update Catalog.

Update removal information

Note We do not recommend that you remove any security update. To remove this update, use the Programs and Features item in Control Panel.

Update restart information

This update does not replace any previously released updates.

File information The English (United States) version of this software update installs files that have the attributes that are listed in the following tables.Windows Server 2012 file information

The MANIFEST files (.manifest) and MUM files (.mum) that are installed are not listed.

File Information

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.DirectoryServices.dll

4.7.3915.0

417,792

24-Jan-2022

19:30

x64

Not Applicable

Not Applicable

System.DirectoryServices.dll

4.7.3915.0

417,792

24-Jan-2022

19:30

x86

Not Applicable

Not Applicable

File name

File version

File size

Date

Time

Platform

SP requirement

Service branch

System.DirectoryServices.dll

4.7.3915.0

417,792

24-Jan-2022

19:30

x86

Not Applicable

Not Applicable

Information about protection and security

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