home *** CD-ROM | disk | FTP | other *** search
- Newsgroups: comp.compression
- Path: sparky!uunet!decwrl!deccrl!news.crl.dec.com!pa.dec.com!sttng.mlo.dec.com!reisert
- From: reisert@sttng.mlo.dec.com (Jim Reisert)
- Subject: What's coming in PKWare's PKZIP 2.0
- Message-ID: <1992Aug25.203706.24532@PA.dec.com>
- Lines: 119
- Sender: news@PA.dec.com (News)
- Reply-To: reisert@sttng.mlo.dec.com (Jim Reisert)
- Organization: Digital Equipment Corporation -- Maynard, MA
- Date: Tue, 25 Aug 92 20:37:06 GMT
- Lines: 119
-
-
- 7/23/92
-
- Joe Pantuso
- PKWARE Inc.
-
- I thought people might be interested in looking at the preliminary version
- of the "what's new" file for PKZIP 2.
-
- Note that this is very brief/vague/incomplete.
-
- New stuff in PKZIP 2
- ====================
- PKZIP
- -----
-
- - New compression algorithm
-
- - Novell Netware support
-
- - Four levels of speed/compression plus "zero" compression (storage only)
-
- - Storage of empty subdirectories
-
- - Creation multi-volume archives. PKZIP will also format disks as it
- goes if necessary, otherwise using whatever free space is available
- on each formatted disk. This feature can use any standard and
- removeable DOS device.
-
- - "Compatibility" file opening mode. (-=)
- Opposite of "Share" mode. Helps overcome some network situations where
- a file would be locked otherwise.
-
- - Improved archive attribute support. (-a+/-i/-i-)
-
- - Improved date range support. (-t/-T)
-
-
- PKUNZIP
- -------
-
- - When PKUNZIP detects existing files it now checks before overwriting
- files (y/n/a/r)=Yes/No/All/Rename. Rename will prompt for a new name,
- All will cause PKUNZIP to continue as though -o had been specified on
- the command line.
-
- - Exclusion of list files (-x@file.lst)
-
- - View option now supports pause as well as technical view (-vm/-vt)
-
-
- BOTH
- ----
-
- - Expanded documentation. Including tutorial, "How PKZIP works", Special
- section on encryption, Using List files. The "How..." section includes
- a theoretical explanation of how compression works (for interested
- folk--not a technical discussion) as well as a general explanation of
- how a file is structured and what happens when PKZIP does it's thing.
-
- - EMS/XMS support. DPMI Usage. EMS/XMS support reduces conventional
- memory use significantly.
-
- - PKZIP/PKUNZIP now can use 386 instructions, EMS XMS and DPMI in a DOS box
- under OS/2 2.0 or above (Previous versions of OS/2 did not support 386
- instruction usage properly so when PKZIP detects a lower version of OS/2
- it will disable this ability).
-
- - Creation of List files by PKZIP and PKUNZIP.
-
- - New improved (very strong) AV feature
-
- - The size of list file that can be read has be increased to 5000-9700 bytes
- (from 2000-4000)
-
- - Handy information display shows XMS/EMS/Net use and type of compression
- and CPU type detected.
-
- - PKSFXjr can now use an output path, it previously could only outp
-
- - ZIP2EXE Accepts output path
-
- - ZIP2EXE can now reverse the process with -x
-
- - The -s "Password" option can now accept input from the keyboard directly.
- This allows complex passwords to be entered more easily.
-
- - Problems with display of View and Percent complete when working with files
- of 100 megabytes or greater have been fixed.
-
- - New "Mini" PKUNZIP called PKUNZJR.EXE is less than 3k in size and uses
- very little memory. Limited to ZIP files containing less than 500 files.
-
- - 386 instruction/EMS/XMS/DPMI offered in DOS session under OS/2 2.0
- (Previous versions of OS/2 did not support these features properly,
- so PKZIP would disable it's usage of 386 instructions)
-
- - Volume Label is displayed as single string instead of 8.3 format
- used previously (i.e. "PKWARE VOL" rather than "PKWARE V.OL"
-
- - View option now supports pause between screens w/more (-vm[...])
- View order can be reversed by adding 'r' to -v option. (-vr[...])
-
- - Any ANSI codes detected in file names or comments are suppressed,
- preventing ANSI bombs and such mischief.
-
- - PKZIP 2 includes PKSFANSI (PK Safe ANSI), a (very) small TSR that blocks
- Keyboard reassignment codes with any version of ANSI. Also offers the
- stipping of color codes which is useful on monochrom systems such as
- laptops.
-
- - New PKZIP Configuration program allows easy setup of the PKZIP.CFG file.
-
- --
- James J. Reisert Internet: reisert@sttng.enet.dec.com
- Digital Equipment Corp. UUCP: ...decwrl!sttng.enet!reisert
- 146 Main Street Voice: 508-493-5747
- Maynard, MA 01754 FAX: 508-493-0395
-
-