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It's worth noting that Microsoft Store for Business and Microsoft Store for Education have been retired, and Windows Server 2019 does not support the Microsoft Store client. As a result, obtaining or installing Store applications on Windows Server 2019 can be more limited than on Windows client operating systems.
For Windows Server 2019, MSIX and APPX packages are supported only in specific scenarios. When using Windows Server 2019 with Desktop Experience, MSIX, APPX, MSIXBundle, and APPXBundle packages can be installed, but the application publisher must provide an offline installation package along with any required dependency packages. Installation is typically performed through PowerShell rather than through the Microsoft Store.
As potential workarounds, you may consider the following:
- Obtain a standalone MSI, EXE, MSIX, or APPX installer directly from the software vendor instead of relying on Microsoft Store distribution.
- If an MSIX or APPX package is available, ensure that all required dependencies, such as VCLibs or .NET runtime components, are installed together with the package.
- If the application is available only through Microsoft Store and the publisher does not offer an offline installation package, the application may not be deployable on Windows Server 2019 because Store functionality is not supported on that platform.
- Where possible, use a server-supported version of the application or deploy it on a supported Windows client operating system that includes Microsoft Store support.
If these options do not address your requirements and the application is critical to your environment, I recommend opening a Microsoft support ticket or contacting the application vendor directly to determine whether a supported offline installation package is available for Windows Server 2019.
References: MSIX Support on Server 2019 - MSIX | Microsoft Learn
MSIX features and supported platforms - MSIX | Microsoft Learn
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