I also meant to add, that there are GUI panes like RCDefaultApp that provide access to the wealth of settings in Launch Services: http://www.rubicode.com/Softw

I also meant to add, that there are GUI panes like RCDefaultApp that provide access to the wealth of settings in Launch Services: http://www.rubicode.com/Software/RCDefaultApp/ http://www.rubicode.com/Software/RCDefaultApp/ For example, mapping file types, URLs, MIME types, etc.