Currently running a mix of servers running either 2003 or 2007. Am wondering if it's possible to disable calendar publishing, ideally so users can publish their calendars publicly either through outlook or owa. I've seen it being done in 2010 with the set-sharingpolicy , but this cmdlet doesn't exist in 03/07. The closest I can find is the set-owavirtualdirectory, but this, at most will block owa from doing it. Anyone have an idea?

By default, users' free/busy information is published for Outlook and OWA clients. Fiona Liao TechNet Community Support

I see, but is it possible to disable the publishing function completely? I mean the publishing where it ties into a live account and allows public online publishing.