exe /importprf it can be done when autodiscover can't be used (because it's hosted).
We cannot see free/busy from Shared calendars nor can we use the Out of Office Assistant.
This is very easily accomplished by having a specific DNS. Attempting the Autodiscover and Exchange ActiveSync test (if requested). Outlook 2010 autodiscover The Autodiscover Service is probably the fastest way to configure Outlook clients for Exchange Server as the user just needs to start Outlook to complete it’s configuration.