| Platform SDK: Exchange 2000 Server | 
[This is preliminary documentation and subject to change.]
The CDO object model is designed to support a single CDO Configuration object to be shared across a wide array of objects. Each top-level CDO object stores a reference to this central Configuration object through a Configuration property on an associated interface. The following table lists these top-level COM classes and the interface through which the Configuration reference is set:
| Class | Configuration Interface Property | 
|---|---|
| Item | IItem.Configuration | 
| Folder | IFolder.Configuration | 
| Message | IMessage.Configuration | 
| CalendarMessage | ICalendarMessage.Configuration | 
| Appointment | IAppointment.Configuration |