We are looking at user guide authoring programs that will create either XML or XHTML webhelp  user guides for our software products. We'd like to make these available on our DNN site, but we'd want to restrict access to them to authorized users. We're aware of the "Secure File System" option, but are concerned that the renaming of all the files (to add ".resource" to the file name) would break all the links between pages in the guides. Has anyone found a way to secure access to user guides/static web pages in bulk on a DNN site without breaking links between the documents?