Article View: comp.sys.ibm.pc.misc
Article #11619Re: PKZip > 1.1: Why bother?!?!
From: Greg Wust
Date: Thu, 07 Jan 1993 15:01
Date: Thu, 07 Jan 1993 15:01
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|> Say again? I have sound files, text files, and other stuff on my BBS
|> in ZIP files. Most of the files were created on a UNIX box,
|> downloaded to an Apple II, and passed on to my BBS (which runs on a
|> 286). All three machines have no problems dealing with ZIP
|> archives...whatever's inside, it'll unpack into usable form.
|>
|> For IBM/clone-specific files (such as programs), though, other
|> compressors offer better performance than PKZIP. I usually use ARJ
|> for those files. Combine ZIP and ARJ with GIF, JPEG, and ShrinkIt (an
|> Apple II-specific archive format), and I have only five different
|> archive types on my system.
Scott,
Taken directly from the manual for ZIP for OS/2:
DESCRIPTION
zip is a compression and file packaging utility for Unix,
VMS, MSDOS, OS/2, Windows NT, Minix, Atari and Macintosh.
It is analogous to a combination of tar and compress and is
compatible with PKZIP (Phil Katz ZIP) for MSDOS systems.
There is a companion to zip called unzip (of course) which
you should be able to find the same place you got zip. zip
and unzip can work with files produced by PKZIP under MSDOS,
and PKZIP and PKUNZIP can work with files produced by zip.
zip version 1.9 is compatible with pkzip 1.93a. Note that
pkunzip 1.10 cannot extract files produced by pkzip 1.93a or
zip 1.9b. You must use pkunzip 1.93a or unzip 5.0 to extract
them.
Perhaps I did not state it well - as mentioned above, ZIP works fine
with PKZIP files. However, earlier versions of PKZIP were not fully
compatible with ZIP'd files from other sources. Since your Apple and
Unix boxes used ZIP (since PKZIP is an MSDOS program), I am sure there
was no problem with passing files back and forth. However, PKZIP in
the MSDOS world was one of the first and is the largest used compression
program today. Since it will not always handle files compressed with
ZIP, an upgrade to the latest version is in order to maintain complete
compatibility across platforms. And that is what the original poster
was asking.
Greg
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Greg Wust SAS Institute Inc
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<93006.36581.J056600@LMSC5.IS.LMSC.LOCKHEED.COM> <C0G9w0.Dwr@unx.sas.com> <SKNKWRKS.93Jan6204512@sonny-boy.cs.unlv.edu>Show Full Headers
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Newsgroups: comp.sys.ibm.pc.misc Path: arc1-ca.pugleaf.net!sparky!uunet!spool.mu.edu!agate!usenet.ins.cwru.edu!gatech!concert!sas!mozart.unx.sas.com!sasghw From: sasghw@pica.unx.sas.com (Greg Wust) Subject: Re: PKZip > 1.1: Why bother?!?! Originator: sasghw@pica.unx.sas.com Sender: news@unx.sas.com (Noter of Newsworthy Events) Message-ID: <C0HoEn.4Fo@unx.sas.com> Date: Thu, 7 Jan 1993 15:01:34 GMT References: <93006.36581.J056600@LMSC5.IS.LMSC.LOCKHEED.COM> <C0G9w0.Dwr@unx.sas.com> <SKNKWRKS.93Jan6204512@sonny-boy.cs.unlv.edu> Nntp-Posting-Host: pica.unx.sas.com Organization: SAS Institute Inc. Lines: 54