AppointmentItem.CopyTo Method (Outlook)
Copies the AppointmentItem to the folder that is specified by the DestinationFolder parameter and returns an object that represents the item created in the destination folder by the copy operation.
expression .CopyTo(DestinationFolder, CopyOptions)
expression A variable that represents an AppointmentItem object.
Returns an AppointmentItem that represents the object created in the destination folder as a result of the copy operation.
If no argument is specified for the CopyOptions parameter, CopyTo assumes that the value is olCreateAppointment.
CopyTo returns an error if the destination folder is not an appropriate folder type for an AppointmentItem object, or if the user does not have the necessary permissions to create items in the specified destination folder.
Setting the REG_MULTI_SZ value, DisableCrossAccountCopy, in HKCU\Software\Microsoft\Office\14.0\Outlook in the Windows registry has the side effect of disabling this method.