Add error when using dism resources via Appx#1479
Merged
SteveL-MSFT merged 1 commit intoPowerShell:mainfrom Apr 11, 2026
Merged
Add error when using dism resources via Appx#1479SteveL-MSFT merged 1 commit intoPowerShell:mainfrom
SteveL-MSFT merged 1 commit intoPowerShell:mainfrom
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Pull request overview
Adds a targeted, user-friendly error for a known limitation where DISM APIs aren’t accessible when the resource is installed via Appx, surfacing a clearer failure mode during session initialization.
Changes:
- Detect
REGDB_E_CLASSNOTREGfromDismInitializeandDismOpenSessionand return a dedicated localized error. - Add a new
dism.notSupportedAppxlocalized string for the new error path.
Reviewed changes
Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.
| File | Description |
|---|---|
| resources/dism_dsc/src/dism.rs | Adds HRESULT check for REGDB_E_CLASSNOTREG during DISM initialization/session open and returns a localized “not supported via Appx” error. |
| resources/dism_dsc/locales/en-us.toml | Adds the notSupportedAppx message used by the new error path. |
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PR Summary
There is a known issue with Appx that prevents access to dism APIs. So if the error returned indicates the class is not registered, tell the user it is not supported.