No, App-V is not EOL in April 2026

No, App-V is not EOL in April 2026

a few weeks ago, a customer wrote to me saying that App-V is to go out of support in 2026 after all. 2026? Where did the new date come from? There was the problem that many thought App-V was going out of support in 2025 because the Microsoft Desktop Optimization Pack (MDOP) had been announced for that date. The MDOP includes, among other things, the App-V infrastructure for distributing App-V packages to endpoints. But the App-V client itself was integrated into the operating system starting with Windows 10 1607 (at that time also in Windows Server 2016). App-V packages can also be distributed by other means (PowerShell) or another deployment method like Endpoint Configuration Manager. So nothing to worry about.

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Winget on Server 2019

As I wrote in the blog "Winget on Server 2022", there is a reason why we can't use Winget.exe with Server 2019. Winget is started from the command line and support for it is missing in Server 2019. The situation has changed and we have a solution.
Winget, similar to "aptget" on Linux, allows a significant number of Applications can be installed with simple commands from the command line. A description of Winget can be found here:

The Winget installation package Winget is a part of the AppInstaller package with which AppX and MSIX packages can be installed at the click of a button. In the Microsoft Store you can find the package can be found here (pay attention to the release here, possibly use Insider):

Furthermore you can find the package Windows Package Manager in the GitHub repository. Manager, which can be installed manually and also includes Winget:

This is all a bit confusing from a purely linguistic point of view. The key thing is that we need an easy command line tool that we can use to automatically install applications from many manufacturers in an automated way. It would now of course be nice to use this Tool, also for Server 2019 to be able to use. 

My friend Thorsten Butz (you can also find a session of PSUGH there as a recording) figured out two things:

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Install WinGet and AppInstaller on Windows Server 2022

The 1.x release for Winget (from Microsoft) has been published. A small command line tool, which can be used to install thousands of applications quickly. can be installed quickly. There are he many blog articles, how to install Winget for Windows 10 (in beta). Unfortunately however, no article on how to make it work on a Windows Server. Basically everything can be installed on Server 2019 after, what is available for Windows 10. We just need to "extract" the Appx and MSIX files for this. Files from the store "extract". With Winget, unfortunately, there was the limitation, that the command line is not yet supported in Server 2019 due to build 1809. is supported. For Server 2022 it's different and when in the last days we installed one of one of the first ISO images of Server 2022 the idea came up right away, Winget there to test and write a short tutorial if it works.
The Winget tool is included in the preview version or insider version of Windows App Installer. We need to install an insider version of App Installer to be able to use be able to use Winget. In this procedure it is mandatory to use Microsoftstore is necessary, which we cannot easily use on Windows Server.

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Error Codes of App-V 5 Packages

The typical App-V error code consists of 2 x 4 bytes in the form hexadecimal: "0x000000-0x000000". The first six characters refer to the App-V source code and can be ignored. For error analysis the last 10 characters are interesting. So "00-0x000000". The first two characters show the type of error and the source. The last eight characters are the actual error code. Once an error code is returned as a decimal number, then this decimal number must be converted to a hexadecimal value for analysis.

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Hidden App-V Registry Keys

Now since 2004 I have been implementing projects with Microsoft App-V (then Softgrid) and yet the product surprises me again and again with unknown elements. After the M.A.D. Day 2019 we had a TroubleShooting Session with Sebastian Gernert. We noticed that App-V always accesses the registration key "HKLM\SOFTWARE\Microsoft\AppV\Subsystem\Disabled\". It was on my todo list for a long time to analyze this key once. Now I finally got around to it. At first we created a key "Disabled" and already a number of subkeys like "Integration", "Virtual Fonts", "Virtual Services" etc. appeared in ProcMon.
So the App-V client has some hidden registry keys to disable the different subsystems globally and this can be very useful.
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