Simple
Data Binding
The ActiveX
Controls Architecture defines a data-binding mechanism, whereby an ActiveX
Control can specify that one or more of its properties are bindable. In most
cases, a data-bound control should not absolutely require data binding, so that
it could be inserted into a container that does not support data binding.
Obviously, in such a situation, the functionality of the control may be
reduced.
CATID - { 157083E1-2368-11cf-87B9-00AA006C8166}
CATID_PropertyNotifyControl