July 6, 2021, update for Outlook 2016 (KB5001980)

This article describes update 5001980 for Microsoft Outlook 2016 that was released on July 6, 2021.

Be aware that the update in the Microsoft Download Center applies to the Microsoft Installer (.msi)-based edition of Office 2016. It doesn't apply to the Office 2016 Click-to-Run editions, such as Microsoft Office 365 Home (see What version of Office am I using?).

Improvements and fixes

This article contains the following fixes:

  • Fixes an intermittent crash when Outlook reconnects to the Exchange server.

  • Fixes some performance and graphics issues in long-running sessions of Outlook.

How to download and install the update

Microsoft Update

Use Microsoft Update to automatically download and install the update.

Download Center

This update is also available for manual download and installation from the Microsoft Download Center. 

If you're not sure which platform (32-bit or 64-bit) you're running, see Am I running 32-bit or 64-bit Office? Also see more information about how to download Microsoft support files.

Virus-scan claim

Microsoft scanned this file for viruses by using the most current virus-detection software that was available on the date that the file was posted. The file is stored on security-enhanced servers that help prevent any unauthorized changes to it.

Update information

Prerequisites

To apply this update, you must have Microsoft Office 2016 installed.

Restart information

You might have to restart the computer after you install this update.

More information

How to uninstall this update

Windows 10

  1. Go to Start, enter View Installed Updates in the Search Windows box, and then press Enter.

  2. In the list of updates, locate and select KB5001980, and then select Uninstall.

Windows 8 and Windows 8.1

  1. Swipe in from the right edge of the screen, and then select Search. If you're using a mouse, point to the lower-right corner of the screen, and then select Search.

  2. Enter windows update, select Windows Update, and then select Installed Updates.

  3. In the list of updates, locate and select KB5001980, and then select Uninstall.

Windows 7

  1. Go to Start, enter Run, and then select Run.

  2. Enter Appwiz.cpl, and then select OK.

  3. Select View installed updates.

  4. In the list of updates, locate and select KB5001980, and then select Uninstall.

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 times for these files are listed in Coordinated Universal Time (UTC). The dates and 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 times may change when you perform certain operations on the files.

x86

outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.5176.1000

156,544

15-Jun-2021

05:19

Dlgsetp.dll

Dlgsetp.dll

16.0.5002.1000

112,960

15-Jun-2021

05:19

Emablt32.dll

Emablt32.dll

16.0.5176.1000

134,032

15-Jun-2021

05:19

Envelope.dll

Envelope.dll

16.0.5176.1000

191,352

15-Jun-2021

05:19

Mapiph.dll

Mapiph.dll

16.0.4999.1000

334,960

15-Jun-2021

05:19

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,712

15-Jun-2021

05:18

Mimedir.dll

Mimedir.dll

16.0.5176.1000

450,344

15-Jun-2021

05:19

Olmapi32.dll

Olmapi32.dll

16.0.5176.1000

4,823,904

15-Jun-2021

05:19

Omsmain.dll

Omsmain.dll

16.0.5149.1000

758,632

15-Jun-2021

05:19

Omsxp32.dll

Omsxp32.dll

16.0.5095.1000

263,072

15-Jun-2021

05:19

Outllibr.dll_1033

Outllibr.dll

16.0.4966.1000

7,498,576

15-Jun-2021

05:18

Outlmime.dll

Outlmime.dll

16.0.5176.1000

616,320

15-Jun-2021

05:19

Outlook.exe

Outlook.exe

16.0.5182.1000

23,300,952

15-Jun-2021

05:19

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

15-Jun-2021

05:18

Outlph.dll

Outlph.dll

16.0.5071.1000

360,344

15-Jun-2021

05:19

Outlvba.dll

Outlvba.dll

16.0.5176.1000

78,728

15-Jun-2021

05:19

Pstprx32.dll

Pstprx32.dll

16.0.5176.1000

1,404,256

15-Jun-2021

05:19

Rm.dll

Rm.dll

16.0.5095.1000

92,496

15-Jun-2021

05:19

Scnpst32.dll

Scnpst32.dll

16.0.5176.1000

424,400

15-Jun-2021

05:19

Scnpst64.dll

Scnpst64.dll

16.0.5002.1000

436,888

15-Jun-2021

05:19

Scnpst64c.dll

Scnpst64c.dll

16.0.5002.1000

635,360

15-Jun-2021

05:19

x64

outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.5176.1000

204,624

15-Jun-2021

05:21

Dlgsetp.dll

Dlgsetp.dll

16.0.5149.1000

141,184

15-Jun-2021

05:21

Emablt32.dll

Emablt32.dll

16.0.5176.1000

168,832

15-Jun-2021

05:21

Envelope.dll

Envelope.dll

16.0.5176.1000

250,728

15-Jun-2021

05:21

Mapiph.dll

Mapiph.dll

16.0.4999.1000

483,448

15-Jun-2021

05:21

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,744

15-Jun-2021

05:21

Mimedir.dll

Mimedir.dll

16.0.5176.1000

605,984

15-Jun-2021

05:21

Olappt.fae

Olappt.fae

16.0.4687.1000

134,464

15-Jun-2021

05:21

Olmapi32.dll

Olmapi32.dll

16.0.5176.1000

6,668,176

15-Jun-2021

05:21

Omsmain.dll

Omsmain.dll

16.0.5149.1000

1,005,920

15-Jun-2021

05:21

Omsxp32.dll

Omsxp32.dll

16.0.5149.1000

353,672

15-Jun-2021

05:21

Outllibr.dll_1033

Outllibr.dll

16.0.4966.1000

7,498,568

15-Jun-2021

05:21

Outlmime.dll

Outlmime.dll

16.0.5176.1000

788,864

15-Jun-2021

05:21

Outlook.exe

Outlook.exe

16.0.5182.1000

35,113,800

15-Jun-2021

05:21

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

15-Jun-2021

05:21

Outlph.dll

Outlph.dll

16.0.5071.1000

430,992

15-Jun-2021

05:21

Outlvba.dll

Outlvba.dll

16.0.5176.1000

100,208

15-Jun-2021

05:21

Pstprx32.dll

Pstprx32.dll

16.0.5176.1000

2,592,608

15-Jun-2021

05:21

Recall.dll

Recall.dll

16.0.4759.1000

76,088

15-Jun-2021

05:21

Rm.dll

Rm.dll

16.0.5095.1000

112,440

15-Jun-2021

05:21

Scnpst32.dll

Scnpst32.dll

16.0.5002.1000

530,360

15-Jun-2021

05:21

Scnpst64.dll

Scnpst64.dll

16.0.5161.1000

533,448

15-Jun-2021

05:21

Scnpst64c.dll

Scnpst64c.dll

16.0.5161.1000

731,608

15-Jun-2021

05:21

References

Learn about the standard terminology that is used to describe Microsoft software updates. The Office System TechCenter contains the latest administrative updates and strategic deployment resources for all versions of Office.

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