#Pkware inc chess game archive
#Pkware inc chess game registration
#Pkware inc chess game verification
#Pkware inc chess game zip

Registered version included creation of configurable self-extracted archives, added Authenticity Verification (AV) Information. PKZIP 2.6 was the last version to support Windows 3.1 and Windows NT for the Alpha and PowerPC platforms.A new command-line product was introduced in Windows 95, OS/2, UNIX platforms, called 'PKZIP Command Line' (later expanded to 'PKZIP Server'), which featured new command line syntax. DCL Implode extraction was supported on non-DOS ports. PKZIP 2.50 supported long file names on all builds, and Deflate64 extraction. DOS version of PKZIP 2.50 was released on, as its final MS-DOS product. PKZIP 2.50 (released on April 15, 1998) was the first version released for Windows 3.1, 95, NT platforms.It was a version of PKZIP 2.04g licensed to IBM.

Registered version included PKUNZJR, PK Safe ANSI, PKCFG utilities. A new Authenticity Verification (AV) signature format was used. PKZIP 2.x also supported spanning archives to multiple disk, which simply split the files into multiple pieces, and using volume label on each drive to differentiate each other. zip) extension are in PKZIP 2.x format, and utilities to read and write these files are available on all common platforms. The resulting file format has since become ubiquitous on Microsoft Windows and on the Internet Р Р†Р вЂљРІР‚Сљ almost all files with the. This new version dispensed with the miscellaneous compression methods of PKZIP 1.x and replaced them with DEFLATE (although several levels of deflation were provided by the program).

PKZIP 2.04g (released in January 1993): By the time the release was ready, fake 2.x releases were circulating, some of them malware, so an untainted version number was chosen instead of 2.0.

It was supposed to be quickly followed by a final PKZIP 2 release, but there were numerous delays.

PKZIP 1.93a (released in October 1991): An alpha version that introduced a new compression method which Katz called 'deflating'.

Removed tools included BIOSFIX, REZIP, MAKESFX. EAX register was always saved on 80386 or above CPU.

Imploding was up to 5X faster and compression ratio was improved over 1.02.

PKZIP 1.10 (released on March 15, 1990): New features included authenticity verification, 'mini' PKSFX self-extracting module, integrating self-extracting module into ZIP2EXE, ability to save & restore volume labels.

#Pkware inc chess game archive

OS/2 version added ZIP2EXE and 2 self-extracting archive headers.

PKZIP 1.02 (released on October 1, 1989) includes new utility BIOSFIX.COM, which preserved the entire 80386 register set during any mode switches via INT 15H.

PKZIP's default compression behavior was changed from fastest (Shrink) to best (Implode). New utility included Thomas Atkinson's REZIP conversion utility (part of ZIP-KIT). Imploding was chosen based on the characteristics of the file being compressed.

#Pkware inc chess game zip

PKZIP 1.01 (released on July 21, 1989) added Implode compression, while reduced files can only be extracted from ZIP archive.

New tools included with PKZIP include PKZipFix.

PKZIP 0.92 (released on March 6, 1989): In addition to bug fixes, PKZIP included an option to automatically choose the best compression method for each file.

In addition to PKZIP and PKUNZIP, it also included ZIP2EXE, which required an external self-extracting executable header created by MAKESFX from the PKZIP executable package.

PKZIP 0.9 (released on February 10, 1989) supported reducing algorithm (from SCRNCH by Graeme McRae) with four compression settings and shrinking.

PKZIP 0.8 (released on January 1, 1989) initial version.

#Pkware inc chess game registration

The first version was released in 1989, as a DOS command-line tool, distributed under shareware model with a US$25 registration fee (US$47 with manual).