At times, having the ability to maintain separate resource files can be useful. While the default resource file is resources.resjson, to load resources from additional files, string identifiers should use path-absolute URI references that start with '/' and the filename (e.g., /errors/scenario8error loads from the errors.resjson file).

Resource ids are URIs which are typically relative to ms-resource:///resources/, which represents the resources.resjson file in the main package. Other packages can be referenced in the URI hostname (e.g. ms-resource://packagename/).