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This article describes the contents of the September 2023 servicing release for Microsoft Desktop Optimization Pack (MDOP). This servicing release contains an update for App-V 5.1 management server failing to publish metadata information for an excessively large number of App-V packages.

Issues that are fixed in this update

App-V Server 5.1 (release version)

This servicing release contains quality improvements for App-V 5.1 Server.

Update information

Microsoft Download Center

A supported update is available for download.


To apply this update, you must have the release version of APP-V 5.1 or a later servicing release installed.

Restart requirements

You must restart the computer after you apply this update.

Update replacement information

This update replaces Microsoft Application Virtualization version HF10 as described in the following article:

  • KB4041137 September 2017 servicing release for Microsoft Desktop Optimization Pack

Registry information

To enable this update, you must create the following registry subkeys on the App-V Management Server:

Registry location: HKEY_LOCAL_MACHINE\Software\Microsoft\AppV\Server\PublishingService\


Value data: Any value greater than 0

Registry location: HKEY_LOCAL_MACHINE\Software\Microsoft\AppV\Server\PublishingService\


Value data:  Any value greater than 0

File information

The English (United States) version of this software update installs files that have the attributes that are listed in the following table.

File name 

File version 

File size 








Learn about the standard terminology that is used to describe Microsoft software updates.

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