<programming> A type of COM component that can self-register, also known
as an "ActiveX control". All COM objects implement the "IUnknown" interface but
an ActiveX control usually also implements some of the standard interfaces for
embedding, user interface, methods, properties, events, and persistence.
ActiveX controls were originally called "OLE Controls", and were required to
provide all of these interfaces but that requirement was dropped, and the name
changed, to make ActiveX controls lean enough to be downloaded as part of a web
Because ActiveX components can support the OLE embedding interfaces, they can be
included in web pages. Because they are COM objects, they can be used from
languages such as Visual Basic, Visual C++, Java, VBScript.
["Understanding ActiveX and OLE", David Chappell, MS Press, 1996].
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Active Server Pages « ActiveX » ActiveX Data
Objects » ACT ONE » Actor