Showing tag results for MSIX

May 27, 2026
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Deployment Operations, Requests and Queue

Howard Kapustein

The PackageManager API submits requests to the deployment engine for processing. Each request represents an instruction for the deployment system to carry out a defined set of actions, collectively referred to as a deployment operation. The operation associated with a request depends primarily on the API used to initiate it and, in some cases, its...

May 19, 2026
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Package Identity

Howard Kapustein

An MSIX package identity is composed of a five-part tuple that uniquely identifies a package. It consists of the following attributes: Together, these fields form the canonical identity of a package. Programmatically, this identity can be represented using APIs such as Windows.ApplicationModel.PackageId or the PACKAGE_ID structure. Why Pa...

May 12, 2026
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Is This a Packaged Process?

Howard Kapustein

Sometimes you need to know whether the current process has package identity. Certain Windows features require it, and behaviors can differ—both technically and culturally. For example, classic Windows applications often store settings in the registry, whereas packaged applications typically use ApplicationData.LocalSettings. So how can your code ...

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...