Unzipping Software Free

[John P. Myers]

http://www.7-zip.org/

100% free and works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix here: http://sourceforge.net/projects/p7zip/files/

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.

[Slicker]

http://www.7-zip.org/

100% free and works in Windows 7 / Vista / XP / 2008 / 2003 / 2000 / NT / ME / 98. There is a port of the command line version to Linux/Unix here: http://sourceforge.net/projects/p7zip/files/

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.

Better yet, it will zip > 2GB files whereas the Zip built into Win7 doesn't always read large zip files correctly. Then again, forget zip. The native 7z compression is tighter resulting in smaller files. There are several backup apps which now use the 7z format for the archives. I've been using 7-zip for several years and love it.

P.S. I still have an original "registered version" PKZip 5.25 inch single-sided floppy disk in my archives from when it took over as "compression king" from arc. I wonder if it is worth anything to a collector....

[trigggl]

Here's a non-exhaustive list of what I have available to me in the Gentoo package management system.

emerge -s zip | grep app-arch -A 2

* app-arch/bzip2
Latest version available: 1.0.6-r3
Latest version installed: 1.0.6-r3
--
* app-arch/dczip [ Masked ]
Latest version available: 2.05
Latest version installed: [ Not Installed ]
--
* app-arch/gzip
Latest version available: 1.5
Latest version installed: 1.5
--
* app-arch/lbzip2
Latest version available: 2.2
Latest version installed: [ Not Installed ]
--
* app-arch/lrzip
Latest version available: 0.44
Latest version installed: [ Not Installed ]
--
* app-arch/lzip
Latest version available: 1.13
Latest version installed: [ Not Installed ]
--
* app-arch/p7zip
Latest version available: 9.13
Latest version installed: [ Not Installed ]
--
* app-arch/pbzip2
Latest version available: 1.1.8
Latest version installed: [ Not Installed ]
--
* app-arch/rzip
Latest version available: 2.1-r2
Latest version installed: [ Not Installed ]
--
* app-arch/torrentzip [ Masked ]
Latest version available: 0.2-r1
Latest version installed: [ Not Installed ]
--
* app-arch/unzip
Latest version available: 6.0-r3
Latest version installed: 6.0-r3
--
* app-arch/zip
Latest version available: 3.0-r1
Latest version installed: 3.0-r1

Apparently, I'm just using zip and unzip. p7zip is there, though.