Franck,
Maybe an example will help explain my question:
If I wanted to include a file called "states.xml" that list all the states and their postal abbreviations, I can easily add that file as a resource file and use it as a datasource, but how would I include the schema for the states.xml file...it appears Infopath automatically generates schemas for xml resource files, but I would like to include the schema I created for the files.