Hello again, I have found that I can still publish to the DCS with the older 10.4 iCal (v2.0), which the online documentation says is not compatible, as long as it is done in the root directory and with the admin/admin uid/pwd. For example, publishing to http://www.servername.edu:8008/ with admin/admin is no problem. It has a problem unpublishing, but the ability to publish and subscribe is there for older versions of iCal. I am wondering if, since it is possible for this to happen on the root dir with the admin guid, can I somehow config DCS to let it happen across the server, in other dir structures? Is there a reason why I wouldn't want this? Normally when I try this, I get: Calendar data does not conform to CalDAV requirements: METHOD property is not allowed in CalDAV iCalendar data. But it seems important that servers be somewhat backwards compatible, so that not everybody has to go out and buy new software in order to take advantage. Additionally, why wouldn't I receive the same error message as an admin/admin publishing to the root dir? Any ideas would be welcome, thank you all very much for helping out. -Doug