Thank you for all this information. On my side, we have retested the use of XXE_ADDON_PATH and it seems to work fine.
Some ideas about your problem: [1] When something does not work with XXE, please always remember to restart XXE with a console. You'll probably see error messages printed there. This is done by replacing "javaw" by "java" in xxe.jstart (or xxe.bat depending on the way you start XXE). More info in http://www.xmlmind.com/xmleditor/faq.html#display_exception_in_console [2] The XML catalog resolver ``crashes'' when the current working directory is a UNC pathname. More info in http://www.xmlmind.com/xmleditor/known_problems.html Mike Maxwell wrote: > I (maxwell at umiacs.umd.edu) wrote: >> We have several copies of XXE Professional edition installed on >> WinXP PCs on two different local area networks. It works on one of >> these networks, but not on the other. > > Hussein Shafie replied: >> Normally, the "xxe-config:" prefix is specified as follows in >> XXE_install_dir/addon/config/catalog.xml: --- <rewriteURI >> uriStartString="xxe-config:" rewritePrefix="." /> --- This means that >> you have nothing special to do to make "xxe-config:" URLs work. >> >> The error could be caused by a modification you made in an XML >> catalog. >> >> Either: * XXE_install_dir/addon/config/catalog.xml has been deleted >> or corrupted. > > XXE_install_dir/addon/config/catalog.xml is present, and it does not > appear to have been corrupted. (We un-installed and re-installed XXE.) > >> Or: * You have redefined the "xxe-config:" prefix in an >> XML catalog of yours. > > That seems unlikely, but I suppose it's possible. To my knowledge we > don't have any XML catalogs installed on that machine, other than the > ones that XXE itself installs. At any rate, this should show up in your > next suggestion, shouldn't it?: > >> The XML catalogs loaded by XXE are displayed in the About box. > > On the PCs where XXE is working right , the > XXE_install_dir/addon/config/catalog.xml shows up (as C:\Program > Files\XMLmind_XML_Editor\addon\config\catalog.xml). But on this PC that > isn't working right, it does *not* show up; the only catalog that > appears is the one for the Batik image toolkit plugin. > > So that's apparently the problem; the catalog is where it should be, but > for some reason XXE isn't loading it. The question I still have is > *why* it isn't loaded, and what I can do to fix it. I don't see > anything in the XXE Options to add or remove catalogs. AFAIK, the only > non-standard thing we've done is to set the environment variable > XXE_ADDON_PATH to point to a shared directory where we keep our > customizations. This works fine on our PCs that are on the other > network, so I doubt that this is causing the problem. I don't see any > other suspicious looking environment variables on the PC where XXE isn't > working. > > So: why would it be that doesn't XXE on this particular PC find the > XXE_install_dir/addon/config/catalog.xml (which is on that PC's C: > drive), and what can we do to tell XXE where this is? > > (I'm not sure why the Batik plugin is installed, it's not one we're > using. I'll try uninstalling it and see if that makes any diff.) > > All our PCs are running XXE Professional v4.1, under Windows XP.

