The DeleteProperties method removes specified properties from an object.
Schedule and all Item objects
objAppt.DeleteProperties Arg1=string, Arg2=string, ..., ArgN=string
The DeleteProperties method provides an efficient means of deleting multiple properties in a single call. For example, the following sample code uses this method to remove the alarm properties from an appointment:
objAppt.DeleteProperties Ring, AlarmAmount, AlarmTypeUnit
Some properties cannot be deleted, such as ItemId, Created, and LastModified.