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Microsoft has released a cumulative update for Skype for Business Server 2019 Application Host. The version number of this update is 7.0.2046.123.

How to install the update

The cumulative update improves the reliability, stability, and performance of the Microsoft Skype for Business Server 2019 Application Host. To install the cumulative update, you must follow the steps that are described inĀ Updates for Skype for Business Server 2019 (KB4470124).

Note The Cumulative Server Update Installer applies all updates for the appropriate server role in one operation.


There are no prerequisites for installing this cumulative update.

Registry information

To use one of the cumulative updates in this package, you don't have to make any changes to the registry.

Restart requirement

You may have to restart the computer after you apply this cumulative update.

Update replacement information

This cumulative update doesn't replace any updates.

Update package installation information

To apply this cumulative update, run AppServer.msp on computers that are running one of the following server roles:

  • Skype for Business Server 2019 - Standard Edition server

  • Skype for Business Server 2019 - Enterprise Edition - Front End server

Removal information

To remove this cumulative update, use the Add or Remove Programs item in Control Panel.

When you install the update, insert the source CD or provide the path where the source files can be found if you're prompted.

The global version of this cumulative update uses a Microsoft Windows Installer package to install the cumulative update. The dates and the times for these files are listed in Coordinated Universal Time (UTC) in the following table. When you view the file information, the date is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

After the update is installed, the global version of this update has the file attributes, or a later version of the file attributes, that are listed in the following table:

File name

File version

File size








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