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.ocx

File Type ActiveX Control IconActiveX Control
File Format Proprietary (Microsoft)
Usage Referenced by an application; not meant to be opened manually
Popularity ★ ★ ★ ★ ☆  Common
Description

Object that can be placed within an ActiveX form; typically has an event attached to it, such as handling scroll bar movement and the resizing of windows; commonly written in the Visual Basic or C++ programming languages.

Originally called an Object Linking and Embedding (OLE) custom control. Now referred to as an ActiveX control, which is the component object within Microsoft's ActiveX technologies.

Open With
Windows

IconMicrosoft Visual Studio

Published 2007
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Information from the PC File Extensions Reference
https://pc.net/extensions/ocx
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