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.OCX File Extension

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File TypeActiveX Control

DeveloperMicrosoft
Popularity
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CategoryDeveloper Files
FormatBinary

Binary

This file is saved in a binary format, which requires a specific program to read its contents.

Definition

Object file used within ActiveX forms; contains control behaviors that typically are triggered by user or program events; may be used for functions such as window resizing and scroll bar movement handling; commonly written programming languages, such as Visual Basic or C++.

More Information

OCX files were originally called Object Linking and Embedding (OLE) custom controls, but now are referred to as ActiveX controls, which is the component object used in Microsoft's ActiveX technologies.

OCX files may be created by various software development programs, including Microsoft Visual Studio.

Programs that open OCX files
Windows
Microsoft Visual Studio 2015
Updated 3/8/2010