Sign in with Microsoft
Sign in or create an account.
Hello,
Select a different account.
You have multiple accounts
Choose the account you want to sign in with.

Applies to:

Microsoft .NET Framework 4.5.2

This update for Windows Server 2012 includes cumulative reliability improvements in .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.

Important

  • 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

CLR1

  • Addressed an issue where the Framework would throw an exception is the year in the parsed date is greater or equal the year start the next era. Now, the framework will not throw such exception.

  • Updated Japanese Era dates that are formatted for the first year in an era and for which the format pattern uses “y年”. The format of the year together with the symbol “元” is supported instead of using year number 1. Also, formatting day numbers that include “元” is supported.

  • Removed dependency of single quote to output the Gannen character in Japanese Era formatting.

1 Common Language Runtime (CLR)

Additional information about this update

For more information about this update as it relates to Windows Server 2012, see the following article in the Microsoft Knowledge Base:

4489487 March 2019 Update for .NET Framework 3.5, 4.5.2, 4.6, 4.6.1, 4.6.2, 4.7, 4.7.1, and 4.7.2 for Windows Server 2012 (KB 4489487)

Known Issues

Microsoft is not currently aware of any issues with this update.

How to obtain and install the update

Microsoft Update Catalog

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

Windows Software Update Services (WSUS)

On your WSUS server, follow these steps:

  1. Select Start, select Administrative Tools, and then select Microsoft Windows Server Update Services 3.0.

  2. Expand ComputerName, and then select Action.

  3. Select Import Updates.

  4. WSUS opens a browser window in which you may be prompted to install an ActiveX control. You must install the ActiveX control to continue.

  5. After the ActiveX control is installed, you see the Microsoft Update Catalog screen. Type 4489487 in the Search box, and then select Search

  6. Locate the .NET Framework packages that match the operating systems, languages, and processors in your environment. Select Add to add them to your basket.

  7. After you select all the packages that you require, select View Basket.

  8. To import the packages to your WSUS server, select Import.

  9. After the packages are imported, select Close to return to WSUS.

The updates are now available for installation through WSUS.

Prerequisites

To apply this update, you must have .NET Framework 4.5.2 installed.

Restart requirement

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 a previously released update.

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following tables. The dates and the times for these files are listed in Coordinated Universal Time (UTC). The dates and the times for these files on your local computer are displayed in your local time together with your current daylight saving time (DST) bias. Additionally, the dates and the times may change when you perform certain operations on the files.

Windows Server 2012

Note: The MANIFEST files (.manifest) and the MUM files (.mum) that are installed for each environment are listed in the "Additional file information" section. MUM, MANIFEST, and the associated security catalog (.cat) files, are very important to maintain the state of the updated components. The security catalog files, for which the attributes are not listed, are signed with a Microsoft digital signature.


Additional file information

x64 Windows Server 2012

File name

File version

File size

Date

Time

Platform

Mscorlib.dll

4.0.30319.36523

5,221,936

06-Feb-2019

14:07

x64

Normidna.nlp

Not applicable

59,342

04-May-2018

19:43

Not applicable

Normnfc.nlp

Not applicable

47,076

04-May-2018

19:43

Not applicable

Normnfd.nlp

Not applicable

40,566

04-May-2018

19:43

Not applicable

Normnfkc.nlp

Not applicable

67,808

04-May-2018

19:43

Not applicable

Normnfkd.nlp

Not applicable

61,718

04-May-2018

19:43

Not applicable

Clrjit.dll

4.0.30319.36523

1,234,480

06-Feb-2019

14:07

x64

Clr.dll

4.0.30319.36523

10,070,064

06-Feb-2019

14:07

x64

Mscordacwks.dll

4.0.30319.36523

1,731,120

06-Feb-2019

14:07

x64

Mscordbi.dll

4.0.30319.36523

1,533,488

06-Feb-2019

14:07

x64

Msvcp120_clr0400.dll

12.0.52523.36523

678,448

06-Feb-2019

14:07

x64

Msvcr120_clr0400.dll

12.0.52523.36523

869,632

06-Feb-2019

14:07

x64

Peverify.dll

4.0.30319.36523

226,072

06-Feb-2019

14:07

x64

Sos.dll

4.0.30319.36523

822,832

06-Feb-2019

14:07

x64

Mscorlib.dll

4.0.30319.36523

5,268,016

06-Feb-2019

14:07

x86

Normidna.nlp

Not applicable

59,342

15-Nov-2017

00:50

Not applicable

Normnfc.nlp

Not applicable

47,076

15-Nov-2017

00:50

Not applicable

Normnfd.nlp

Not applicable

40,566

15-Nov-2017

00:50

Not applicable

Normnfkc.nlp

Not applicable

67,808

15-Nov-2017

00:50

Not applicable

Normnfkd.nlp

Not applicable

61,718

15-Nov-2017

00:50

Not applicable

Clrjit.dll

4.0.30319.36523

508,976

06-Feb-2019

14:07

x86

Clr.dll

4.0.30319.36523

6,938,368

06-Feb-2019

14:07

x86

Mscordacwks.dll

4.0.30319.36523

1,284,144

06-Feb-2019

14:07

x86

Mscordbi.dll

4.0.30319.36523

1,107,504

06-Feb-2019

14:07

x86

Msvcp120_clr0400.dll

12.0.52523.36523

536,832

06-Feb-2019

14:07

x86

Msvcr120_clr0400.dll

12.0.52523.36523

875,568

06-Feb-2019

14:07

x86

Peverify.dll

4.0.30319.36523

163,888

06-Feb-2019

14:07

x86

Sos.dll

4.0.30319.36523

762,416

06-Feb-2019

14:07

x86

x64 Windows Server 2012

File property

Value

Amd64_20427bcc37701b31ce9c28f5c457145c_b03f5f7f11d50a3a_4.0.9200.22691_none_aa94e48d34f6f174.manifest

Not applicable

928

07-Feb-2019

02:33

Not applicable

Amd64_23f0c0d3bfa29ff8b4cd30b1e553e19e_b03f5f7f11d50a3a_4.0.9200.22691_none_f75d10b9980c0b32.manifest

Not applicable

922

07-Feb-2019

02:33

Not applicable

Amd64_29a3155b05fa5975a6f527be9634a69b_b03f5f7f11d50a3a_4.0.9200.22691_none_07e61866739521aa.manifest

Not applicable

918

07-Feb-2019

02:33

Not applicable

Amd64_34fcab34213e1fbab22912b44881c82d_b77a5c561934e089_4.0.9200.22691_none_bd0cf2a7b02a196f.manifest

Not applicable

627

07-Feb-2019

02:33

Not applicable

Amd64_5cc8813c2c70d4dd6a962f020833df58_b03f5f7f11d50a3a_4.0.9200.22691_none_789d4872576793fb.manifest

Not applicable

912

07-Feb-2019

02:33

Not applicable

Amd64_7dacf83783f055759b44bcc39de60881_b77a5c561934e089_4.0.9200.22691_none_393014740df38e9f.manifest

Not applicable

900

07-Feb-2019

02:33

Not applicable

Amd64_ca42fcc6d367579de8767fda6f778aae_b03f5f7f11d50a3a_4.0.9200.22691_none_e65be37b670b847c.manifest

Not applicable

922

07-Feb-2019

02:33

Not applicable

Amd64_cf88cd510fab62dccd321095a1562c7a_31bf3856ad364e35_4.0.9200.22691_none_fb6e4e0c1161cb03.manifest

Not applicable

974

07-Feb-2019

02:33

Not applicable

Amd64_ec04657b75c5b26be3f21a5b47bbc7da_31bf3856ad364e35_4.0.9200.22691_none_fa989216e030762d.manifest

Not applicable

974

07-Feb-2019

02:33

Not applicable

Amd64_ed95c5e71c541bf03cf1654ebb438679_b03f5f7f11d50a3a_4.0.9200.22691_none_94319034a8bc669d.manifest

Not applicable

912

07-Feb-2019

02:33

Not applicable

Amd64_mscorlib_b77a5c561934e089_4.0.9200.22691_none_0e2c4c47f168b6b6.manifest

Not applicable

113,994

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_1110aac2b9397696.manifest

Not applicable

2,152

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_2d006ac324326b75.manifest

Not applicable

26,527

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_d279775f38a11805.manifest

Not applicable

3,398

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_f3ee163a4b699775.manifest

Not applicable

2,895

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-msvcp120_clr_dll_31bf3856ad364e35_4.0.9200.22691_none_5bcff1b289846e7b.manifest

Not applicable

2,063

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-msvcr120_clr_dll_31bf3856ad364e35_4.0.9200.22691_none_ec2d8c3bc71b20bd.manifest

Not applicable

2,063

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-peverify_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_24616d64fc8d8d06.manifest

Not applicable

2,052

06-Feb-2019

18:25

Not applicable

Amd64_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_d43175746985125b.manifest

Not applicable

2,032

06-Feb-2019

18:25

Not applicable

Msil_mscorlib.resources_b77a5c561934e089_4.0.9200.22691_en-us_204bbe13fdb14224.manifest

Not applicable

468

06-Feb-2019

18:24

Not applicable

Update.mum

Not applicable

3,266

07-Feb-2019

02:33

Not applicable

X86_mscorlib_b77a5c561934e089_4.0.9200.22691_none_55d9831f05e4dfbc.manifest

Not applicable

97,708

06-Feb-2019

17:26

Not applicable

X86_netfx4-clrjit_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_58bde199cdb59f9c.manifest

Not applicable

2,144

06-Feb-2019

17:26

Not applicable

X86_netfx4-clr_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_74ada19a38ae947b.manifest

Not applicable

26,519

06-Feb-2019

17:26

Not applicable

X86_netfx4-mscordacwks_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_1a26ae364d1d410b.manifest

Not applicable

3,380

06-Feb-2019

17:26

Not applicable

X86_netfx4-mscordbi_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_3b9b4d115fe5c07b.manifest

Not applicable

2,887

06-Feb-2019

17:26

Not applicable

X86_netfx4-msvcp120_clr_dll_31bf3856ad364e35_4.0.9200.22691_none_ffb1562ed126fd45.manifest

Not applicable

2,061

06-Feb-2019

17:26

Not applicable

X86_netfx4-msvcr120_clr_dll_31bf3856ad364e35_4.0.9200.22691_none_900ef0b80ebdaf87.manifest

Not applicable

2,061

06-Feb-2019

17:26

Not applicable

X86_netfx4-peverify_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_6c0ea43c1109b60c.manifest

Not applicable

2,044

06-Feb-2019

17:26

Not applicable

X86_netfx4-sos_dll_b03f5f7f11d50a3a_4.0.9200.22691_none_1bdeac4b7e013b61.manifest

Not applicable

2,024

06-Feb-2019

17:26

Not applicable

How to obtain help and support for this update

Facebook LinkedIn Email
SUBSCRIBE RSS FEEDS

Need more help?

Want more options?

Discover Community

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Microsoft 365 subscription benefits

Microsoft 365 training

Microsoft security

Accessibility center

Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.

Ask the Microsoft Community

Microsoft Tech Community

Windows Insiders

Microsoft 365 Insiders

Was this information helpful?

What affected your experience?
By pressing submit, your feedback will be used to improve Microsoft products and services. Your IT admin will be able to collect this data. Privacy Statement.

Thank you for your feedback!

×