7zip : Experience Something New

}|Serial_Killer|{ · #1 (**permalink**) 12-12-2007, 02:04 PM

What-is 7zip ?

7zip is a compressing software like winrar,winzip or winace.

What are the differences between 7zip and those other softwares ?

First of all, 7zip is freeware. This is under GNU Lesser General Public License (LGPL) (with the RAR license restrictions), with the AES code under the revised BSD license.

I know, you are just laughing at me ! Who pays an attention to this free-or-not free terms. Just to look for cracks ! But still I recommend for open source. Becauase I know, they are our only destination.

second of all, it is much more effective than others to compress text/document files. I have downloaded it, and tested on several files. For text files, the result is impressive, considering other softwares.

File Types Supported by 7zip :

Default extension for this software is .7z , which is a very effective one/

Besides currently it works with ZIP, Microsoft cabinet (CAB) files, RAR, ARJ, Z, gzip, bzip2, LHA, tar, cpio, rpm and Debian deb archives. Versions of 7-Zip from 4.42 onwards also support ISO CD/DVD images.

Technical Details:

The core .7z compression stage uses a variety of algorithms, the most common of which are Bzip2 and LZMA. Developed by Igor Pavlov, LZMA is a relatively new system, making its debut as part of the 7z format. LZMA consists of a large LZ-based sliding dictionary up to 4 GB in size, backed by a range coder.

LZMA compression ratios tend to be very good. Compressed sizes are comparable to other high-gain compression formats, including RAR or ACE, both of which are proprietary.

An interesting Point to Note :

Only with this software, you can compress a file, which name is given in Bengali. In a nutshell, it supports UNICODE. That's a cool feature I think.

Awards :

7-Zip was the winner of the SourceForge.net 2007 community choice awards for "Technical Design" and for "Best Project"

2 important features:

1) 7-Zip has the ability to unpack archives with corrupted filenames, renaming the files as required.
2) Lets users make self-extracting archives so that users who don't have the 7-Zip codec can still extract compressed files.

Download Link :

Download ( In .exe format for 32-bit Windows. Size is 840 KB )

Download ( In .msi format for x64 platform Windows. Size is 1103 KB )

Official Webpage