ARJ
ARJ (Archived by Robert Jung) is a software tool designed by Robert K. Jung for creating high-efficiency compressed file archives. ARJ is currently on version 2.86 for DOS and 3.20 for Microsoft Windows and supports 16-bit, 32-bit and 64-bit Intel architectures.[1]
| Filename extension |
.arj |
|---|---|
| Uniform Type Identifier (UTI) | public.archive.arj |
| Developed by | Robert K. Jung |
| Latest release | 2.86 (2012-05-01) |
| Type of format | archive format |
| Open format? | No |
ARJ was one of two mainstream archivers for DOS and Windows during the early and mid-1990s, with PKZIP being its competition. Parts of ARJ were covered by U.S. Patent 5,140,321 (expired). Generally ARJ was less popular than PKZIP, but it did have a niche market during the BBS era and in the warez scene. This was largely due to ARJ's creation and handling of multi-volume archives (archives which are split into smaller files which are then suitable for dial-up transfers and floppy distribution) being more robust than that of PKZIP.
File format support in other software
ARJ archives can be unpacked with various tools other than the ARJ software. There exists a free software re-implementation of the tool. A number of software utilities, including 7-Zip, Zipeg, and WinRAR can also unpack .arj files.[2] For macOS, standalone utilities, such as DeArj and UnArjMac, are available.
See also
- JAR, an archiver by the same author
- List of archive formats
- List of file archivers
- Comparison of file archivers
References
- "ARJ Software News". 2014-06-07. Retrieved 2019-04-09.
- "File Type: ARJ Compressed File Archive". Archived from the original on 2016-03-04. Retrieved 2019-04-08.