Hi, I am editing an XML file using the XML Spec document type. So it contains the following PI to associate the RNC schema: <?oxygen RNGSchema="file:/.../frameworks/xmlspec/schema/xmlspec.rnc" type="compact"?> The problem is that I edit it on different systems, and the part shown as "..." does vary between them. Is there any way to make references to editor variables for instance in such URIs? Something like: <?oxygen RNGSchema="${frameworks}/xmlspec/schema/xmlspec.rnc" type="compact"?> I also looked where to configure a URI resolver for oNVDL (because from the error message it seems that it is oNVDL that is used to validate this document) but I didn't find. Is there any particular place I could find interesting in that context (manual section, preferences, config file, webpage?) Thanks, -- Florent Georges http://www.fgeorges.org/