MSIX documentation

MSIX is a packaging format built to be safe, secure and reliable, based on a combination of .msi, .appx, App-V and ClickOnce installation technologies.

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Package existing Windows apps
MSIX Packaging Tool enables you to update existing Win32 application packages to the MSIX format. Learn more

Use MSIX anywhere
The MSIX SDK enables developers on various platforms to pack and unpack packages for distribution from either the Microsoft Store, or their own content distribution networks. Learn more

Install MSIX app packages
App Installer allows for installation and updates of any MSIX app package that is locally available or on any content distribution network. Learn more

Package support framework
PSF enables your app to bypass a select number of modern runtime environment limitations, ensuring that your existing solution runs as expected without modifying source code. Learn more


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MSIX training videos

MSIX overview MSIX provides lots of benefits across the app lifecycle management. Learn how to take advantage of MSIX in your enterprise and the benefits to developers, IT Pros and end users.

MSIX for developers
Learn how developers can take advantage of the benefits of MSIX.

Evolving and enhancing desktop apps with MSIX
Evolve and enhance your desktop apps with MSIX. Leverage new APIs, new controls and other features.