Questions tagged [msix]

New package format for Win32, Desktop Bridges, and Universal Windows Platform (UWP) applications.

MSIX is a new package specification which provides a unified packaging format for Win32, Desktop Bridges, and Universal Windows Platform (UWP) applications.

MSIX was built from the ground up to deliver complete containerization for Windows 10 applications. The format utilizes the AppX application framework and provides a path to deploy all Windows 10 Applications to the Windows Store. It inherits all the great features in UWP and most importantly, it applies to all Win32, WPF, Windows Forms, and UWP applications.

Importantly this new and in-progress MSIX package format is essentially a major improvement of the current AppX format - rather than the MSI format - despite the name.

Microsoft seems to envision a future where MSIX not only replaces MSI, but also creates a package format which cross-platform Microsoft applications can recognize and use on any platform (iOS, Android, MacOS, and Linux).


MSIX is an emerging technology with little official information currently available. Accordingly the above information has been assembled primarily from the following sources:

287 questions
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MSIX add prerequisites similar to ClickOnce

We have an older ClickOnce installer for a Windows application that has a prerequisite for a Setup.exe file from a 3rd party vendor. (webvew2 to be exact)... The ClickOnce installer has been working fine for years and when it first installs our…
goroth
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How do I turn an unreal engine build file into an msix?

I have developed a simple game with unreal engine 4.22.2. I have a built file with an exe that I would like to turn into an msix file for publishing to the Microsoft store. I know how to do this once the exe is built as an app in visual studio, but…
Puma Salad
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MSIX Installation of WPF Won't Show Toast Alerts

I have a C# WPF application that connects to an Azure hosted API. When the API has detected specific events inside the data base it updates the WPF app to show the events and they are alerted to the user on the desktop using Toast Alerts. The code…
Rich G
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How do I register Shell Namespace Extension in packaged app?

I need to deploy a Shell Namespace Extension as part of my packaging project, created by Visual Studio. I see that I can register context menus, property handlers and COM exe and surrogate servers, but not Shell Namespace Extensions for some…
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Can I package prebuilt binary exe inside MSIX package?

I have a console app written in C++, and I want to put it inside MSIX package to be able to distribute it to my users (and potentially put on Windows Store). I manually compiled the app to MyApp.exe file, and now I want to create MSIX package that…
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App installed via MSIX package 'forgets' virtual LocalAppData path

Some temp files are being cached to Environment.GetFolderPath(Environment.SpecialFolder.) + "\\Company\\App";. At app start the virtual AppData location is assigned. Everything seems to be okay and files are being generated in the virtual directory…
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Appinstaller package full name does not match

I have created and msix package and an appinstaller for my application so I can have it auto update. When I run the appinstaller (with Add-AppxPackage -Appinstaller) I get the message: Add-AppxPackage : Deployment failed with HRESULT: 0x8008020C,…
user3190036
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How to submit new app updates in the published app in Partner Center / Microsoft Store?

I have an MSI installer to submit it in the Partner Center or Microsoft store. I converted my MSI installer into MSIX package format using the MSIX packaging tool. I had already an idea of how to publish my app in the MS store using this reference:…
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How do I make an execution alias work on Windows Server 2019?

I packaged a Win32 console app into an MSIX package. Everything works fine on Win 10. I can also install it on Windows Server 2019, but have no way of running it there from the console by calling the alias or any other means. The app is installed…
max
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How to change install location of msix bundle?

I have a WPF app that I am planning on deploying with the Windows Application Packaging Project in Visual Studio that makes the MSIX bundle for installations and future updates. The installer automatically installs the app in C:\Program…
ahosek
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Install MSIX packaging tool on windows server 2019

Does anyone know how I can install MSIX Packaging Tool on a windows server 2019 (1809). On a windows 10 desktop I can just download it from the windows store but server doesn't have access to the store. Can it be downloaded as an offline install? I…
BillyDay
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Unable to install MSIX package on Windows 2016 (build 1607)

I have a developped a UWP Console project in Visual Studio. Now I want to publish it by creating an App Package by Sideloading (indeed, targeted computers are not connected to internet and cannot access to the Windows Store). Visual Studio gives me…
Maxime Esprit
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Signed WPF app installed from signed MSIX still running from untrusted location

I have a valid code signing certificate. I use it to sign a WPF application. This app will run as an administrator. It has a valid app.manifest.
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How to compile/build and package an MSIX project but in parallel?

I'm trying to create an msixbundle or an msixupload file that will be uploaded to the Microsoft Store. Currently I'm using Azure Pipelines to perform the build, which targets x86|x64. I now want to add ARM64, but the builds are taking longer than…
Daniel
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MSIX c# - Update and deploy on server/OneDrive

Goal: I am trying to make a setup file for my app. Futhermore the app must be able to be updated from a server or OneDrive. Solution: I am using windows application packaging project for this. The issue: The installer works fine when the installer…
Steffen
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