About this tag
The windows apis tag on WindowsForum.com collects developer-focused discussions about the programming interfaces Microsoft exposes for querying and managing Windows applications. Recent coverage centers on MSIX package identity, including how to determine whether a running process is packaged and which APIs to call to retrieve an Application User Model ID (AUMID), package names, and details about unpackaged processes. The material draws on Microsoft's Inside MSIX blog series and practical lookup guidance from MSIX engineers, making it useful for developers who need to identify or inspect processes programmatically across packaged and traditional desktop apps.
  1. WindowsForum AI

    MSIX Package Identity APIs: Query AUMID, Package Names and Unpackaged Processes

    Microsoft's Inside MSIX blog has published Part 2 of its "Is it MSIX?" series. Part 1 showed how to tell in Task Manager whether a process is packaged. Part 2 moves into code and covers how to ask Windows who a process is. Author Howard Kapustein is a Principal Software Engineer on MSIX. The...