If the CalendarView element is specified in a FindItem request, the Web service returns a list of single calendar items and occurrences of recurring calendar items within the range specified by StartDate and EndDate.
If the CalendarView element is not specified in a FindItem request, the Web service returns a list of single calendar items and recurring master calendar items. Calendar occurrences of a recurring calendar item are not expanded.
The schema that describes this element is located in the EWS virtual directory of the computer that is running Microsoft Exchange Server 2007 that has the Client Access server role installed.