This article describes update 4484107 for Microsoft Outlook 2016 that was released on October 1, 2019.

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

With this update, Outlook now can block the sending and receiving of Python files (.py, .pyc, .pyo, .pyw, .pyz and .pyzw) as attachments.

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? 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 KB4484107, 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 KB4484107, 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 KB4484107, 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

16.0.4900.1000

163,384

10-Sep-2019

02:33

Dlgsetp.dll

Dlgsetp.dll

16.0.4900.1000

119,848

10-Sep-2019

02:33

Envelope.dll

Envelope.dll

16.0.4900.1000

198,240

10-Sep-2019

02:33

Mapiph.dll

Mapiph.dll

16.0.4849.1000

333,008

10-Sep-2019

02:33

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,712

10-Sep-2019

02:32

Mimedir.dll

Mimedir.dll

16.0.4900.1000

455,568

10-Sep-2019

02:33

Olmapi32.dll

Olmapi32.dll

16.0.4912.1000

4,823,112

11-Sep-2019

08:00

Omsmain.dll

Omsmain.dll

16.0.4852.1000

753,304

10-Sep-2019

02:33

Omsxp32.dll

Omsxp32.dll

16.0.4852.1000

261,312

10-Sep-2019

02:33

Outllibr.dll_1033

Outllibr.dll

16.0.4873.1000

7,505,848

10-Sep-2019

02:32

Outlmime.dll

Outlmime.dll

16.0.4900.1000

623,120

10-Sep-2019

02:33

Outlook.exe

Outlook.exe

16.0.4900.1000

23,293,432

10-Sep-2019

02:33

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

10-Sep-2019

02:32

Outlph.dll

Outlph.dll

16.0.4696.1000

358,680

10-Sep-2019

02:33

Outlvba.dll

Outlvba.dll

16.0.4900.1000

85,056

10-Sep-2019

02:33

Pstprx32.dll

Pstprx32.dll

16.0.4900.1000

1,406,408

10-Sep-2019

02:33

Rm.dll

Rm.dll

16.0.4702.1000

90,816

10-Sep-2019

02:33

Scnpst32.dll

Scnpst32.dll

16.0.4900.1000

431,312

10-Sep-2019

02:33

Scnpst64.dll

Scnpst64.dll

16.0.4900.1000

442,600

10-Sep-2019

02:33

Scnpst64c.dll

Scnpst64c.dll

16.0.4900.1000

641,784

10-Sep-2019

02:33


x64

outlook-x-none.msp file information

File identifier

File name

File version

File size

Date

Time

Contab32.dll

Contab32.dll

16.0.4900.1000

212,024

10-Sep-2019

02:37

Dlgsetp.dll

Dlgsetp.dll

16.0.4900.1000

148,000

10-Sep-2019

02:37

Envelope.dll

Envelope.dll

16.0.4900.1000

257,112

10-Sep-2019

02:37

Mapiph.dll

Mapiph.dll

16.0.4849.1000

481,488

10-Sep-2019

02:37

Mapir.dll_1033

Mapir.dll

16.0.4723.1000

1,280,744

10-Sep-2019

02:37

Mimedir.dll

Mimedir.dll

16.0.4900.1000

609,768

10-Sep-2019

02:37

Olappt.fae

Olappt.fae

16.0.4687.1000

134,464

10-Sep-2019

02:37

Olmapi32.dll

Olmapi32.dll

16.0.4912.1000

6,664,264

11-Sep-2019

08:03

Omsmain.dll

Omsmain.dll

16.0.4852.1000

1,004,392

10-Sep-2019

02:37

Omsxp32.dll

Omsxp32.dll

16.0.4783.1000

352,136

10-Sep-2019

02:37

Outllibr.dll_1033

Outllibr.dll

16.0.4873.1000

7,505,848

10-Sep-2019

02:37

Outlmime.dll

Outlmime.dll

16.0.4900.1000

795,240

10-Sep-2019

02:37

Outlook.exe

Outlook.exe

16.0.4900.1000

35,100,656

10-Sep-2019

02:37

Outlook.hol_1033

Outlook.hol

Not applicable

1,812,658

10-Sep-2019

02:37

Outlph.dll

Outlph.dll

16.0.4696.1000

429,344

10-Sep-2019

02:37

Outlvba.dll

Outlvba.dll

16.0.4900.1000

105,528

10-Sep-2019

02:37

Pstprx32.dll

Pstprx32.dll

16.0.4900.1000

2,593,792

10-Sep-2019

02:37

Recall.dll

Recall.dll

16.0.4759.1000

76,088

10-Sep-2019

02:37

Rm.dll

Rm.dll

16.0.4696.1000

110,776

10-Sep-2019

02:37

Scnpst32.dll

Scnpst32.dll

16.0.4900.1000

536,784

10-Sep-2019

02:37

Scnpst64.dll

Scnpst64.dll

16.0.4900.1000

539,880

10-Sep-2019

02:37

Scnpst64c.dll

Scnpst64c.dll

16.0.4900.1000

738,040

10-Sep-2019

02:37


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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