7-Zip 9.20.05 alpha

7-Zip Official Website: http://www.7-zip.org/


Release Notes

7-Zip 9.20.05 alpha was released.


What’s new:

– 7-Zip now can unpack UEFI BIOS files.

– 64-bit version of 7-Zip now includes additional 32-bit shell extension DLL.

So other 32-bit programs can call 64-bit 7-Zip via context menu.

– Now it’s possible to associate 7-Zip with file types without Administrator rights.

– New -mf=FilterID switch to specify compression filter. Examples:

7z a -mf=bcj2 a.7z a.tar

7z a -mf=delta:4 a.7z a.wav

7z a -mf=bcj a.tar.xz a.tar

– There are some changes in LZMA settings for BCJ2 filter.

So compression ratio now is slightly improved for executable files in -mx9 mode for .7z format.

– Some bugs were fixed.

– New localizations: Corsican, Kyrgyz.



The code that parses -m switch has been rewritten. So if you see any bug with -m switch, please write here: http://sourceforge.net/projects/sevenzip…ic/4363048


Official Download Links:

Stable: 7-Zip 9.20

Released On: 2010-11-18

Size: 1.1 MB

Unstable: 7-Zip 9.20.05 alpha 7-Zip for 32-bit Windows, 7-Zip for 64-bit Windows

Released On: 2011-02-15 11:30:53 UTC

Size: 1.1~1.4 MB



9.20 2010-11-18


– Some bugs were fixed.



7-Zip is a file archiver with a high compression ratio.

The main features of 7-Zip



  • High compression ratio in 7z format with LZMA and LZMA2 compression



  • Supported formats:



  • Packing / unpacking: 7z, XZ, BZIP2, GZIP, TAR, ZIP and WIM



  • Unpacking only: ARJ, CAB, CHM, CPIO, CramFS, DEB, DMG, FAT, HFS, ISO, LZH, LZMA, MBR, MSI, NSIS, NTFS, RAR, RPM, SquashFS, UDF, VHD, WIM, XAR and Z.




  • For ZIP and GZIP formats, 7-Zip provides a compression ratio that


is 2-10 % better than the ratio provided by PKZip and WinZip


  • Strong AES-256 encryption in 7z and ZIP formats



  • Self-extracting capability for 7z format



  • Integration with Windows Shell



  • Powerful File Manager



  • Powerful command line version



  • Plugin for FAR Manager



  • Localizations for 79 languages



7-Zip works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix.


License: GNU LGPL 7-Zip license


News: http://sourceforge.net/projects/sevenzip…orum/45797

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