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APPMODEL_ERROR_NO_APPLICATION
The package context does not identify a manifest application entry
APPMODEL_ERROR_NO_APPLICATION differs from APPMODEL_ERROR_NO_PACKAGE. The process can have package identity while lacking an application identity tied to a specific Application entry and AppUserModel identity. This can occur for package-related helper processes or activation paths that are not a declared app.
Determine whether the API requires a package or an application identity. Query the package’s application entries and verify the process was activated through the intended entry point. A full-trust helper launched by an application may share package context without becoming that manifest application. Pass explicit application identifiers where the API supports them instead of assuming the current process owns one.
What to inspect
- Separate package identity from application-entry identity.
- Verify the manifest application and activation path.
- Do not treat helper processes as the foreground app automatically.
References
- Microsoft: package application-entry enumeration
- Microsoft: packaged desktop process behavior
- Microsoft: package identity versus application declarations
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