KGB Archiver
Encyclopedia
KGB Archiver is a file archiver
and data compression
utility based on the PAQ6 compression algorithm.
Written in Microsoft Visual C++ by Tomasz Pawlak, KGB Archiver is designed to achieve a very high compression ratio. As a consequence, the program is relatively memory and CPU intensive.
KGB Archiver is free and open source software
released under the terms of the GNU General Public License
. Version 2 beta 2 is available for Microsoft Windows
and a command line version of KGB Archiver 1.0 is available for Unix-like
operating systems. KGB Archiver is one of the few applications that works with the PAQ
algorithm for making its KGB files. It has ten levels of compression, from very weak to maximum, a greater variety than that found in most other compression software. However, at higher compression levels, the time required to compress a file increases significantly.
The official website is now offline.
File archiver
A file archiver is a computer program that combines a number of files together into one archive file, or a series of archive files, for easier transportation or storage...
and data compression
Data compression
In computer science and information theory, data compression, source coding or bit-rate reduction is the process of encoding information using fewer bits than the original representation would use....
utility based on the PAQ6 compression algorithm.
Written in Microsoft Visual C++ by Tomasz Pawlak, KGB Archiver is designed to achieve a very high compression ratio. As a consequence, the program is relatively memory and CPU intensive.
KGB Archiver is free and open source software
Free and open source software
Free and open-source software or free/libre/open-source software is software that is liberally licensed to grant users the right to use, study, change, and improve its design through the availability of its source code...
released under the terms of the GNU General Public License
GNU General Public License
The GNU General Public License is the most widely used free software license, originally written by Richard Stallman for the GNU Project....
. Version 2 beta 2 is available for Microsoft Windows
Microsoft Windows
Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...
and a command line version of KGB Archiver 1.0 is available for Unix-like
Unix-like
A Unix-like operating system is one that behaves in a manner similar to a Unix system, while not necessarily conforming to or being certified to any version of the Single UNIX Specification....
operating systems. KGB Archiver is one of the few applications that works with the PAQ
PAQ
PAQ is a series of lossless data compression archivers that have evolved through collaborative development to top rankings on several benchmarks measuring compression ratio . Specialized versions of PAQ have won the Hutter Prize and the Calgary Challenge...
algorithm for making its KGB files. It has ten levels of compression, from very weak to maximum, a greater variety than that found in most other compression software. However, at higher compression levels, the time required to compress a file increases significantly.
The official website is now offline.
System requirements
The minimum requirements for running KGB Archiver are:- 256 MB RAM
- 1.5 GHz processor
Features
- Supports native .kgb files and .zipZIP (file format)Zip is a file format used for data compression and archiving. A zip file contains one or more files that have been compressed, to reduce file size, or stored as is...
files - AES-256Advanced Encryption StandardAdvanced Encryption Standard is a specification for the encryption of electronic data. It has been adopted by the U.S. government and is now used worldwide. It supersedes DES...
encryption - It is able to create self-extracting archives
- UnicodeUnicodeUnicode is a computing industry standard for the consistent encoding, representation and handling of text expressed in most of the world's writing systems...
is supported in both the user interfaceUser interfaceThe user interface, in the industrial design field of human–machine interaction, is the space where interaction between humans and machines occurs. The goal of interaction between a human and a machine at the user interface is effective operation and control of the machine, and feedback from the...
and filesystems - Multilanguage support (including Arabic, German, Greek, Japanese, Polish, Portuguese, Serbian, Spanish, and Ukrainian)
- An Explorer shell extension is available for the windows versions.
See also
- List of file archivers
- Comparison of file archiversComparison of file archiversThe following tables compare general and technical information for a number of file archivers. Please see the individual products' articles for further information. They are neither all-inclusive nor are some entries necessarily up to date...