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ERROR_SXS_SECTION_NOT_FOUND
ERROR_SXS_SECTION_NOT_FOUND means that an activation-context lookup asked Windows for a section that is not present in the activation context active on the current thread. An activation context is built from manifests and can contain separate sections for DLL redirection, COM classes, window classes, or other side-by-side data.
What to check
- Confirm that the code activated the intended activation context before performing the lookup.
- Verify that the requested section type belongs to the manifest data actually packaged with the application.
- Check whether an outer activation scope was deactivated too early or replaced the expected context.
Treat this as a missing-configuration result; adding a section that is unrelated to the requested API only hides the actual manifest or context-selection problem.
Microsoft: activation contexts
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