Showing tag results for PackageManager

Sep 8, 2026
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MSIX PackageVolume: How Package Storage Works

Howard Kapustein

An MSIX package can be staged in several ways and locations: By far the most common is PackageVolume. We'll dig into the rest in future posts, but for now let's focus on MSIX PackageVolume. In the beginning... When MSIX first appeared in Windows 81 packages would be staged to a unique directory under . More specifically, packages were pl...

Sep 1, 2026
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Servicing While In Use and ERROR_PACKAGES_IN_USE

Howard Kapustein

How does MSIX service a package while it's in use? Simple: It doesn't. A core principle of MSIX servicing is: Do not service a package while it's in use. Deployment provides several ways to deal with that constraint. Options range from terminating applications to deferring servicing until the package is no longer in use. How hard can it be? '...

May 4, 2026
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There is no Install – it’s ‘Stage’ and ‘Register’

Howard Kapustein

"Is ContosoParts.msix installed?" is a common - but misleading - question The term install is not a formal concept in MSIX. This may seem paradoxical for a deployment technology, but it makes perfect sense once you understand MSIX deployment’s core architecture. Deployment Requests A caller makes a deployment request to the deployment engine vi...