Definition of ActiveX in The Network Encyclopedia.

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What is ActiveX

An umbrella term for Microsoft technology for building and using software components. Microsoft ActiveX is built on the Component Object Model (COM) and Distributed Component Object Model (DCOM) technologies, which enable software components to interact across a network.

The term ActiveX was first coined at the Internet Professional Developers Conference (Internet PDC) in 1996 and was based on the conference slogan “Activate the Internet.” ActiveX does not replace OLE but broadens and enlarges it to include the Internet and intranet technologies. ActiveX is supported by most Microsoft development and productivity applications, including Visual Basic, Visual C++, and Office.