Unzip Utility For Mac Pkzip

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Unzip Utility For Mac

: Zip 3.00 was released on 7 July 2008.

Runs on: Mac OS X, Mac OS X 10.1, Mac OS X 10.2, Mac OS X 10.3, Mac OS X 10.4, Mac OS X 10.5 4Media iPod Video Converter for Mac v.7.4.0.20120827 4Media iPod Video Converter for Mac can convert popular audio and video files, such as AVI, MPEG, WMV, MOV, MP4, VOB, DivX, XviD, AAC, AV3, MP3, to the formats supported by iPod including MP4, M4A. 7-Zip is free software with open source. The most of the code is under the GNU LGPL license. Some parts of the code are under the BSD 3-clause License. Also there is unRAR license restriction for some parts of the code. Read 7-Zip License information. You can use 7-Zip on any computer, including a computer in a commercial organization. Open/Extract ZIP File on Windows. To open/extract ZIP file, you can use Windows built-in feature, or use a more professional freeware.It's Easy 7-Zip.The Easy 7-Zip is an easy-to-use version of 7-Zip. The open source freeware keeps all features of 7-Zip and adds a few. Runs on: Mac OS X, Mac OS X 10.1, Mac OS X 10.2, Mac OS X 10.3, Mac OS X 10.4, Mac OS X 10.5 Related: Pkzip For Mac - Pkzip Decryption - Sharpziplib Pkzip - Pkzip Encryption - Pkzip For Macbook. Apple's Archive Utility can unzip this file because it ignores the incorrect file size in the local header and instead decompresses the stream until the stream signals its end (compressed gzip streams have an end-of-stream marker).

WiZ 5.03 was released on 11 March 2005. Pkzip unzipUnZip 6.0 was released on 29 April 2009. MacZip 1.06 was released on 22 February 2001. See the Zip, UnZip and WiZ pages for current status and download locations.

In addition, a new set of discussion forums was set up in October 2007. These replace the older QuickTopic forum, which was overrun by spam. (The spam postings have since been deleted, but further posts to the old forum are permanently disabled.)

Info-ZIP is a diverse, Internet-based workgroup of about 20 primary authors and over one hundred beta-testers, formed in 1990 as a mailing list hosted by Keith Petersen on the original SimTel site at the White Sands Missile Range in New Mexico.

Info-ZIP's purpose is to provide free, portable, high-quality versions of the Zip and UnZip compressor-archiver utilities that are compatible with the DOS-based PKZIP by PKWARE, Inc.

Info-ZIP supports hardware from microcomputers all the way up to Cray supercomputers, running on almost all versions of Unix, VMS, OS/2, Windows 9x/NT/etc. (a.k.a. Win32), Windows 3.x, Windows CE, MS-DOS, AmigaDOS, Atari TOS, Acorn RISC OS, BeOS, Mac OS, SMS/QDOS, MVS and OS/390 OE, VM/CMS, FlexOS, Tandem NSK and Human68K (Japanese). There is also some (old) support for LynxOS, TOPS-20, AOS/VS and Novell NLMs. Shared libraries (DLLs) are available for Unix, OS/2, Win32 and Win16, and graphical interfaces are available for Win32, Win16, WinCE and Mac OS.

Info-ZIP code has been incorporated into a number of third-party products as well, both commercial and freeware. Some of the more interesting ones (well, historically speaking) include the use of UnZip code in the unzip.dll distributed with IBM's OS/2 Warp BonusPak and WebExplorer, as part of the reinstallation code for the IBM Aptivas preloaded with OS/2 Warp, and as part of IBM's Infoprint product. Sun used Info-ZIP's self-extractor to distribute the NT version of their HotJava browser, Novell uses UnZip for NetWare 6 installation, and SAP includes it in Business One. Various Windows products such as WinZip and the DynaZIP DLLs incorporate Info-ZIP code, too. And let us not forget Pretty Good Privacy (PGP), an excellent encryption program that uses Info-ZIP code as a first step in encrypting files. Info-ZIP's primary compression engine has also been spun off into the free zlib compression library, used in Netscape/Mozilla/Firefox, the Linux kernel, Windows, Java, virtually all PNG-supporting software, and countless other products.

Info-ZIP can be reached by a web-based form, but you'll have to read our Frequently Asked Questions page to find out how. Our two primary web sites are hosted by our very own Hunter Goatley and by the most excellent SourceForge. Secondary distribution sites are hosted by the Comprehensive TeX Archive Network.

Info-ZIP Downloads

UnZip - for extracting and viewing files in .zip archives. Also includes: (UnZip documentation)
  • ZipInfo - for detailed zipfile information (Documentation)
  • fUnZip - for extracting in a pipe (Documentation)
  • UnZipSFX - for creating self-extracting archives (Documentation)
Zip - a compressor/archiver for creating and modifying zipfiles. Also includes: (Zip Documentation)
  • ZipNote - for adding/deleting comments to zipfiles (Documentation)
  • ZipSplit - for splitting zipfiles (Documentation)
  • ZipCloak - for encrypting and decrypting (with optional zcrypt add-on package) (Documentation)
WiZ - a combination Zip/UnZip graphical front end for Windows platforms.
MacZip - a combination Zip/UnZip graphical front end for Mac OS.

Info-ZIP Links

  • Info-ZIP License - our new(er), BSD-like (i.e., very liberal) license
  • Info-ZIP FAQ - Frequently Asked Questions about how and where to download things, what about commercial usage, and anything else we think of
  • Info-ZIP Mailing Lists - how to subscribe to our announcements list (very low traffic) or general discussion list (relatively low traffic)
  • Info-ZIP Internet Sites - we're everywhere! we're everywhere!
    • web pages:
      • www.info-zip.org (US) - Info-ZIP's home site
      • infozip.sourceforge.net (US) - Info-ZIP's home site 2
      • www.ctan.org (US) and CTAN mirrors[FROZEN]
      • www.mirrorservice.org (UK)
      • info-zip.ipmedia.de (Germany)
    • files:
      • sourceforge.net (US, Ireland, France, Belgium, Switzerland, Germany, Australia, etc.; source and (some) current binaries) - Info-ZIP's home site
      • ftp.info-zip.org (US) - Info-ZIP's other home site
      • www.mirrorservice.org (UK)
      • tug.ctan.org (US) [FROZEN]
      • ftp.tex.ac.uk (UK) [FROZEN]
      • ftp.dante.de (Germany) [FROZEN]
  • Info-ZIP People - who we are, where we are and what we do (below)
  • Info-ZIP Rogue's Gallery - scary (old) pictures of us
  • Info-ZIP News - recent news and happenings involving Info-ZIP and/or its members
  • Zip 'Imposters' - other programs called Zip
  • Related Links - other compression and archiver resources, such as PKWARE and PNG

Info-ZIP People

Pkzip Unzip

The core Info-ZIP group consists of programmers from six countries on three continents:

  • Ed Gordon (US); Zip maintainer
  • Christian Spieler (Germany); UnZip maintainer; Win32, DOS
  • Mike White (US); WiZ maintainer; Windows DLLs
  • Dirk Haase (Germany); MacZip maintainer
  • Michael Cleary (US?); MVS
  • Hunter Goatley (US); VMS, mailing list administrator, primary web-site host
  • Ian Gorman (Canada); VM/CMS, MVS (OS/390 Base)
  • Greg Hartwig (US); VM/CMS
  • Jonathan Hudson (UK); SMS/QDOS, VMS
  • Paul Kienitz (US); Amiga, Win32
  • Johnny Lee (Canada); DOS, Win32
  • Steve P. Miller (US); Windows CE
  • Keith Owens (Australia); MVS, Fujitsu MSP
  • Kai Uwe Rommel (Germany); OS/2
  • Steve Salisbury (US); Win32
  • Steven M. Schweda (US); VMS
  • Dave Smith (UK); Tandem NSK
  • Cosmin Truta (Canada); Zip and UnZip maintenance releases
  • Onno van der Linden (Netherlands); former Zip maintainer
  • Paul von Behren (US); OS/390 OpenEdition

Unzip Utility Mac

If you're brave enough, you can check out the Info-ZIP Rogue's Gallery and see what some of us (used to) look like. It's fairly hideous.

Former members of the core Info-ZIP group (i.e., those who no longer even pretend to be active) include:

  • Mark Adler (US); original Zip author; UnZip decompression
  • John Bush (US); Amiga, Solaris
  • Karl Davis (Australia); Acorn RISC OS
  • Harald Denker (Germany); Atari, MVS
  • Jean-loup Gailly (France); Zip compression; former Zip maintainer/co-author; Unix, DOS [aussi en français]
  • Robert Heath (US); Windows GUI
  • Chris Herborth (Canada); QNX, BeOS, formerly Atari
  • David Kirschbaum (US); original UnZip maintainer
  • Igor Mandrichenko (Russia/Ukraine); VMS
  • Sergio Monesi (Italy); Acorn RISC OS
  • Rainer Nausedat (Germany); 64KB deflate
  • George Petrov (Netherlands); MVS, VM/CMS
  • Greg Roelofs (US); former UnZip maintainer/co-author; Unix, OS/2, DOS, early VMS port
  • Antoine Verheijen (Canada); Macintosh
  • Rich Wales (US); original Zip co-author

In addition, Info-ZIP would like to tip our collective hat to Samuel H. Smith, the gentleman who wrote the original MS-DOS unzip on which Info-ZIP's UnZip 3.0 was based--and who kindly made the source code available for free. Even though virtually all of his code has by now been rewritten from scratch, Info-ZIP still owes Mr. Smith a debt of gratitude for getting us into this mess. A package of virtual chocolate-chip cookies is in the e-mail.

Last updated 8 July 2008. Web page (occasionally) maintained by Greg Roelofs, but please direct all comments and questions to the Info-ZIP authors at the address/bug page given in the FAQ. Copyright © 1995-2008 Greg Roelofs.