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WHATSNEW.204
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1993-02-01
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Several new features have been added to PKZIP/PKUNZIP/PKSFX
version 2.04c. Read the file ADDENDUM.DOC for a complete
description of these changes and enhancements. Highlights
of PKZIP/PKUNZIP/PKSFX etc. version 2.04c include:
-Improved Compression
PKZIP/PKUNZIP 2.04c implements a new compression algorithm
called Deflating. Deflating has varying levels of compression
and speed available. Both speed and compression are greatly
improved over previous versions of PKZIP.
-Multi-Volume Archive Support/Formatting
PKZIP/PKUNZIP 2.04c has the ability to "span" a .ZIP file across
multiple diskettes if the final .ZIP file size would be greater
than a single diskette. PKZIP 2.04c also has the ability to
format the destination diskettes on the fly.
-XMS/EMS Usage
PKZIP/PKUNZIP 2.04c has the ability to use of EMS, UMB, and HMA
memory, which will allow the ability to process more files or be
able to run with less conventional memory. PKZIP/PKUNZIP 2.04
will run in as little as 85K of conventional memory if EMS or
XMS memory is available.
-Novell Network Aware
PKZIP 2.04c is Novell Netware "aware". Updating or creating
a .ZIP file on a network drive is much faster with the network
support in PKZIP 2.04c.
-Auto CPU type detection.
PKZIP/PKUNZIP 2.04c will detect what type of CPU it is being run
on and will use instructions specifcally optimized for an 808x
CPU, 80386 CPU, or 80486 CPU.
-DPMI support
PKZIP/PKUNZIP 2.04c automatically detects if DPMI (DOS Protected
Mode Interface) support is available and will execute code in
32-bit protected mode for better speed.
-PKCFG program
PKZIP 2.04c can be configured to best suit your needs through
the use of the PKCFG program. This is only available in the
registered version of PKZIP.
-PKSFX Junior and PKUNZIP Junior
These "Junior" programs use very little memory and are extremely
small. Although they are reduced in ability, their small size
makes them very useful.
-Password Encryption
Sensitive data files can be scrambled with password protection.
The security of this feature has been significantly improved in
PKZIP/PKUNZIP 2.04c.
-Authenticy Verification
Users requiring authentication of archive files may request an
Authenticy Verification code. This allows users to create .ZIP
files which PKUNZIP can detect tampering of.