File extension OCX
| File type | ActiveX Control Format |
| Developer | Microsoft |
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What is a OCX file?
File with an .OCX extension contains information related to the standard control actions of objects called with user’s or system’s actions. These are files relating to objects within ActiveX forms, stored in programming languages such as C++ or Visual Basic. They used to be commonly referred to as the non-standard OLE controllers – Object Linking and Embedding, presently they are called the ActiveX controllers.
OCX files contain constituent objects of the Microsoft ActiveX technology. They can be utilised to describe actions such as changes of the size of program’s windows or bar scrolling. For instance, the mscomctl.OCX and comctl32.OCX of the MS Visual Basic 6.0 files contain updated common controllers of programs stored in this language. They are created in the integrated programming environment, for instance the Microsoft Visual Studio.
Program(s) that can open the .OCX file
How to open OCX files
If you cannot open the OCX file on your computer - there may be several reasons. The first and most important reason (the most common) is the lack of a suitable software that supports OCX among those that are installed on your device.
A very simple way to solve this problem is to find and download the appropriate application. The first part of the task has already been done – the software supporting the OCX file can be found in the table. Now just download and install the appropriate application.
Possible problems with the OCX format files
The inability to open and operate the OCX file does not necessarily mean that you do not have an appropriate software installed on your computer. There may be other problems that also block our ability to operate the ActiveX Control Format file. Below is a list of possible problems.
- Corruption of a OCX file which is being opened
- Incorrect links to the OCX file in registry entries.
- Accidental deletion of the description of the OCX from the Windows registry
- Incomplete installation of an application that supports the OCX format
- The OCX file which is being opened is infected with an undesirable malware.
- The computer does not have enough hardware resources to cope with the opening of the OCX file.
- Drivers of equipment used by the computer to open a OCX file are out of date.
If you are sure that all of these reasons do not exist in your case (or have already been eliminated), the OCX file should operate with your programs without any problem. If the problem with the OCX file has not been solved, it may be due to the fact that in this case there is also another rare problem with the OCX file. In this case, the only you can do is to ask for assistance of a professional staff.
Similar extensions
| .a | Unix Static Object Code Library Format |
| .a2w | Alice Program World Format |
| .actx | DS Game Maker Action Description Format |
| .ada | ADA Language Source Code Format |
| .addin | Microsoft Visual Studio Addin Format |
| .ads | Ada Package Specification |
| .agi | Asterisk Gateway Interface Format |
| .alb | Alpha Five Data Dictionary |
How to associate the file with an installed software?
If you want to associate a file with a new program (e.g. my-file.OCX) you have two ways to do it. The first and the easiest one is to right-click on the selected OCX file. From the drop-down menu select "Choose default program", then click "Browse" and find the desired program. The whole operation must be confirmed by clicking OK. The second and more difficult to do is associate the OCX file extension to the corresponding software in the Windows Registry.
Is there one way to open unknown files?
Many files contain only simple text data. It is possible that while opening unknown files (e.g. OCX) with a simple text editor like Windows Notepad will allow us to see some of the data encoded in the file. This method allows you to preview the contents of many files, but probably not in such a structure as a program dedicated to support them.