7-Zip is open source software. Most of the source code is under the GNU LGPL license. The AES code is under a BSD LICENSE. The unRAR code is under a mixed license: GNU LGPL + unRAR restrictions.

Changelog:
- Some bugs were fixed.

Program Information Category: Tools and Utilities Type: Free Version: 4.56 beta Size: 0.8MB Works on: Windows Product page: here