JackMagic

I want a way to update an Outlook calendar based on a file online. I will update this file through a website, and I want Outlook to point to this file and update the calendar accordingly based on this remote file every time Outlook is started or something like that. If an event is deleted online, it should disappear from the outlook calendar. If another is added, it should be added to the Outlook calendar. Does that make sense? Any suggestions on how to accomplish this? Is there some standard setting in Outlook or is it going to have to be custom built?