File Extension Library


.OV4 File Extension

  • Developer by: Microsoft Corporation
  • Category: System Files

What are .OV4 files and how to open them?

Can't open .OV4 file? Are you wondering what it contains? On our site we will explain to you what this file is, what it is used for and what software opens the .OV4 file.

What is a .OV4 file extension?

.OV4 file extension is created by Microsoft Corporation. .OV4 has been classified as System Files.

.OV4 is Overlay data

The ov4 file extension is mainly related to DOS overlay files. When running in a 640K MS-DOS machine, all program code may not fit into available memory at the same time.

To overcome this memory limitation, most large programs use overlays. An overlay is a portion of the program code that shares memory for its code with other code modules. (part of program to be loaded when needed), program code for DOS.

.OV4 file format is deprecated and this file format is no longer supported.

Currently, .OV4 file type is not actively used and is obsolete. This usually happens with system files in older operating systems, files from long-discontinued software, or with previous versions of some file types (documents, projects, images, etc.) that were replaced in later versions of the original programs.


How to open:

This file type is not meant to be opened directly, there is no software that could open and work with it directly, or there is no information available in public sources about opening this file type. This is usually the case of some internal data files, caches, temporary files etc.

How to convert:

As far as we know, this .ov4 file type can't be converted to any other file format. This is usually the case of system, configuration, temporary, or data files containing data exclusive to only one software and used for its own purposes. Also some proprietary or closed file formats cannot be converted to more common file types in order to protect the intellectual property of the developer, which is for example the case of some DRM-protected multimedia files.

How to fix problems with .OV4 files

  1. You need to update the application that you normally use to open .OV4 files. Only the latest version of the software supports the current .OV4 file format
  2. You need to check the .OV4 file for viruses. To do this, you need to scan it with a popular antivirus (Norton, Nod32, Kaspersky, Dr.Web, etc.)