7-Zip is an open source file archiver with the high compression ratio predominantly for the Microsoft Windows operating system. It operates either as a command line program or with a graphical user interface. It also features integration with the Windows shell environment. 7-Zip is free software, developed by Igor Pavlov and distributed under the GNU LGPL license.
7-Zip 4.57 was released.
What's new:
- The BUG in command line version was fixed: -up3 switch
could work incorrectly.
- Minor improvement in ZIP compression.
Please check at least two things in new version:
1) Update commands and -u switch, if you use it.
2) ZIP compression.
7-Zip works in Windows 98/ME/NT/2000/XP/Vista.
