Trinidad and Tobago Computer Society

TTCS OSSWIN DVD 0.89 - Free and Open Source Software for Windows

Software Category : desktop applications

About 7-Zip 9.20

7-Zip is a file archive utility that can compress and uncompress a variety of archive formats including: ZIP, CAB, RAR, ARJ, GZIP, BZIP2, Z, TAR, CPIO, RPM and DEB. Its own file compression format 7z, can compress files 30-70% better than ZIP files.

Features of 7-Zip 9.20

Compresses ZIP files better than WinZip or Pkzip
7-Zip compresses ZIP files 2-10 % better than PKZip and WinZip.
Self-extracting capability for 7z format
Create self-extracting EXE files from 7z files. Can be used as a simple installer (e.g extract files to temp folder, run SETUP.EXE).
Integrates with Windows Explorer
Right clicking on files and folders in Windows Explorer will show various actions that can be done by 7-Zip.
Command line version included
Useful for batch files to automate backup chores.
Creative Commons Licence
The TTCS OSSWIN DVD 0.89 webpages (the work), is copyrighted by the Trinidad and Tobago Computer Society (TTCS) and is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Licence.
Every one of the Free and Open Source Software applications on this DVD is governed by its own licence.
This webpage was created at Monday July 01, 2013. You can email the TTCS at
Visit the TTCS OSSWIN DVD page at