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“ActiveX controls — small program building blocks — can serve to create distributed applications that work over the Internet through web browsers. Examples include customized applications for gathering data, viewing certain kinds of files, and displaying animation.” (wikipedia)
is an Object an instance of a Control?
The MS terminology is unclear, especially since ActiveX is more a marketing term than a technical one. Often, “ActiveX” can be replaced with “COM” to give a more technically comprehensible meaning.
All code in ActiveX/COM ultimately is an object that exposes one or more interfaces. So, ActiveX/COM controls are objects, along with other pluggable COM types, such as Explorer Extensions, Browser Helper Objects etc.
For an object to be considered an ActiveX control, it must implement the set of interfaces needed for the control to be embedded in a container. IViewObject, IOleControl, IOleControlSite etc..