September 1, 2020, update for Outlook 2016 (KB4484511)

This article describes update 4484511 for Microsoft Outlook 2016 that was released on September 1, 2020.

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 update fixes the following issues:

  • Fixes an issue that causes the SharePoint site option not to appear under Attach File > Browse Web Locations.
    Note To fix this issue, you must install 4484395 together with this update.

  • Fixes an issue for Calendar Overlay users that causes Outlook to default to the last-added calendar instead of the primary calendar when they switch to the calendar module.

  • Fixes an issue that causes users to be unable to turn off the Outlook Today functionality.

This update contains the following improvement:

  • Changes the default fallback encryption from 3DES to AES256. The default fallback encryption is chosen if the recipients' certification doesn't have Secure/Multipurpose Internet Mail Extensions (S/MIME) capabilities published to the certificate.

How to download and install the update

Microsoft Update


Use Microsoft Update to automatically download and install the update.


Download Center


This update is 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? Additionally, 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 may have to restart the computer after you install this update.

More information

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 KB4484511, 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 KB4484511, 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 KB4484511, 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

16.0.5002.1000

156,736

11-Aug-2020

01:23

Dlgsetp.dll

Dlgsetp.dll

16.0.5002.1000

112,960

11-Aug-2020

01:23

Envelope.dll

Envelope.dll

16.0.5002.1000

191,760

11-Aug-2020

01:23

Mapiph.dll

Mapiph.dll

16.0.4999.1000

334,960

11-Aug-2020

01:23

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,712

11-Aug-2020

01:22

Mimedir.dll

Mimedir.dll

16.0.5002.1000

450,760

11-Aug-2020

01:23

Olmapi32.dll

Olmapi32.dll

16.0.5044.1000

4,819,312

11-Aug-2020

01:23

Omsmain.dll

Omsmain.dll

16.0.4999.1000

755,256

11-Aug-2020

01:23

Omsxp32.dll

Omsxp32.dll

16.0.4999.1000

263,264

11-Aug-2020

01:23

Outllibr.dll_1033

Outllibr.dll

16.0.4966.1000

7,498,576

11-Aug-2020

01:22

Outlmime.dll

Outlmime.dll

16.0.5032.1000

615,816

11-Aug-2020

01:23

Outlook.exe

Outlook.exe

16.0.5056.1000

23,294,280

12-Aug-2020

02:33

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

11-Aug-2020

01:22

Outlph.dll

Outlph.dll

16.0.4696.1000

358,680

11-Aug-2020

01:23

Outlvba.dll

Outlvba.dll

16.0.5002.1000

78,888

11-Aug-2020

01:23

Pstprx32.dll

Pstprx32.dll

16.0.5023.1000

1,404,216

11-Aug-2020

01:23

Rm.dll

Rm.dll

16.0.4999.1000

92,912

11-Aug-2020

01:23

Scnpst32.dll

Scnpst32.dll

16.0.5002.1000

424,592

11-Aug-2020

01:23

Scnpst64.dll

Scnpst64.dll

16.0.5002.1000

436,888

11-Aug-2020

01:23

Scnpst64c.dll

Scnpst64c.dll

16.0.5002.1000

635,360

11-Aug-2020

01:23


x64

outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.5002.1000

204,112

11-Aug-2020

01:33

Dlgsetp.dll

Dlgsetp.dll

16.0.5002.1000

141,128

11-Aug-2020

01:33

Envelope.dll

Envelope.dll

16.0.5002.1000

250,728

11-Aug-2020

01:33

Mapiph.dll

Mapiph.dll

16.0.4999.1000

483,448

11-Aug-2020

01:33

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,744

11-Aug-2020

01:32

Mimedir.dll

Mimedir.dll

16.0.5002.1000

605,984

11-Aug-2020

01:33

Olappt.fae

Olappt.fae

16.0.4687.1000

134,464

11-Aug-2020

01:33

Olmapi32.dll

Olmapi32.dll

16.0.5044.1000

6,661,984

11-Aug-2020

01:33

Omsmain.dll

Omsmain.dll

16.0.4999.1000

1,006,136

11-Aug-2020

01:33

Omsxp32.dll

Omsxp32.dll

16.0.4999.1000

353,672

11-Aug-2020

01:33

Outllibr.dll_1033

Outllibr.dll

16.0.4966.1000

7,498,568

11-Aug-2020

01:32

Outlmime.dll

Outlmime.dll

16.0.5032.1000

788,360

11-Aug-2020

01:33

Outlook.exe

Outlook.exe

16.0.5056.1000

35,106,624

12-Aug-2020

02:37

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

11-Aug-2020

01:32

Outlph.dll

Outlph.dll

16.0.4696.1000

429,344

11-Aug-2020

01:33

Outlvba.dll

Outlvba.dll

16.0.5002.1000

100,176

11-Aug-2020

01:33

Pstprx32.dll

Pstprx32.dll

16.0.5023.1000

2,592,560

11-Aug-2020

01:33

Recall.dll

Recall.dll

16.0.4759.1000

76,088

11-Aug-2020

01:33

Rm.dll

Rm.dll

16.0.4696.1000

110,776

11-Aug-2020

01:33

Scnpst32.dll

Scnpst32.dll

16.0.5002.1000

530,360

11-Aug-2020

01:33

Scnpst64.dll

Scnpst64.dll

16.0.5002.1000

533,448

11-Aug-2020

01:33

Scnpst64c.dll

Scnpst64c.dll

16.0.5002.1000

731,600

11-Aug-2020

01:33

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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