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WinBZip2 - Freeware file compression utility for WindowsWinBZip2 - v1.0.0 (Freeware!)
Freeware file compression utility for Windows 95/98/Me/NT/2000/XP/2003


WinBZip2 is an small freeware utility for working with files produced by bzip2 utility (usually it's files with .bz2 extension) and also create such files. Main features include the compressing, decompressing and testing the integrity of bzip2 files.

The bzip2 is an command line driven compression utility, similar to gzip, but with more strong compression and more liberal license, also free from patented algorithms and currently popular almost as the gzip. Bzip2 is not archiving utility, i.e. its can't roll up several files together. It simply compress the specified file.

The quote from bzip2 manual: "bzip2 compresses files using the Burrows-Wheeler block-sorting text compression algorithm, and Huffman coding. Compression is generally considerably better than that achieved by more conventional LZ77/LZ78-based compressors, and approaches the performance of the PPM family of statistical compressors". More information about bzip2, you can find on it homepage at

System requirements

  • any system running Windows 95/98/ME/NT4/2000 or Windows XP.
  • less than 0.6 Megabytes of free space on hard disk.


winbzip2.exe - 289Kb self-extracted EXE-file


WinBZip2 is very simple utility and, for this reason, does not demand any installation utility. Simply unzip all files to any folder and run the executable file (usually, "winbzip2.exe").


After starting the program, on the screen should appear the main program window with tree pages: "Compress", "Decompress" and "Test". For performance of any operation, switch onto appropriate page, by clicking on its header or by pressing a combination of Ctrl+Tab keys. Click on the copyright notice at right bottom corner of window for visit the program homepage.

Decompression tab Compression tab Integrity testing tab

Command line parameters

Currently, WinBZip2 don't support any command line parameters except the name of file to processing. If you prefer to work with command line, you always can use the original BZIP2 utility :).

Changes history

  • v1.0.0 - first public release.

Copyrights and licenses

Copyright © 2002 Irnis Haliullin <>

All copyrights to WinBZip2 are exclusively owned by the author - Irnis Haliullin.

Permission to use, copy, and distribute this software and its documentation for any purpose and without fee is hereby granted, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation. This software is provided "as is" without express or implied warranty.


WinBZip2 uses the libbzip2 library written by Julian Seward.


If you have any questions or suggestions about WinBZip2, please contact by mail to or using feedback form at

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© 2001 Irnis Haliullin    Last modified: Октябрь 06, 2020 

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