If you're building a UWP app you can skip this section. This is useful to know before building an MSIX package for your desktop application. What to know before packaging your desktop appīackground on MSIX requirements and packaged desktop app runtime behavior. If you're developing a UWP application, Visual Studio will default to MSIX as the packaging format for your application. If you're not developing in Visual Studio there are MSIX command line tools you can integrate into your build system to package your application binaries as MSIX. In Visual Studio 2017 version 15.5 and later (including Visual Studio 2019) you can use the Windows Application Packaging Project to generate an MSIX for your application. If your desktop application is in active development we recommend building an MSIX package in your build environment instead of generating an installer and running it through the MSIX Packaging Tool.
