How do I uninstall PKZIP in Windows Vista / Windows 7 / Windows 8? Click 'Start' Click on 'Control Panel' Under Programs click the Uninstall a Program link. When you find the program PKZIP for Windows, click it, and then do one of the following: Windows Vista/7/8: Click Uninstall. Windows XP: Click the Remove or Change/Remove tab (to the right of the program). All Dhruv Comics Pdf.
Contents • • • • • • • • • • • • • History [ ] By the 1970s, file archiving programs were distributed as standard utilities with operating systems. They include the ar, shar, and. These utilities were designed to gather a number of separate files into a single archive file for easier copying and distribution. These archives could optionally be passed through a stream compressor utility, such as and others. Other archivers also appeared during the 1980s, including by System Enhancement Associates, Inc. (SEA), Rahul Dhesi's, Dean W. Cooper's DWC, by Haruhiko Okomura and Haruyasu Yoshizaki and which stands for 'Archived by Robert Jung'.
The development of PKZIP was first announced in the file SOFTDEV.DOC from within the PKPAK 3.61 package, stating it would develop a new and yet unnamed compression program. The announcement had been made following the lawsuit between SEA and PKWARE, Inc. Although SEA won the suit, it lost the compression war, as the user base migrated to PKZIP as the compressor of choice. Led by who refused to accept or offer files compressed as.ARC files, users began recompressing any old archives that were currently stored in.ARC format into.ZIP files. The first version was released in 1989, as a command-line tool, distributed under model with a US$25 registration fee (US$47 with manual). Version history [ ] PKZIP [ ] • PKZIP 0.8 (released on January 1, 1989) initial version • PKZIP 0.9 (released on February 10, 1989) supported reducing algorithm (from by Graeme McRae) with four compression settings and shrinking.
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 0.92 (released on March 6, 1989): In addition to bug fixes, PKZIP included an option to automatically choose the best compression method for each file.
New tools included with PKZIP include PKZipFix. • PKZIP 1.01 (released on July 21, 1989) added Implode compression, while reduced files can only be extracted from ZIP archive. Imploding was chosen based on the characteristics of the file being compressed. New utility included Thomas Atkinson's REZIP conversion utility (part of ZIP-KIT). PKZIP's default compression behavior was changed from fastest (Shrink) to best (Implode).
Supported platforms include OS/2, DOS. • 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. OS/2 version added ZIP2EXE and 2 self-extracting archive headers. • 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. Imploding was up to 5X faster and compression ratio was improved over 1.02. EAX register was always saved on 80386 or above CPU.
Removed tools included BIOSFIX, REZIP, MAKESFX. • PKZIP 1.93a (released in October 1991): An alpha version that introduced a new compression method which Katz called '. It was supposed to be quickly followed by a final PKZIP 2 release, but there were numerous delays.
• PKZIP 2.04c (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. This new version dispensed with the miscellaneous compression methods of PKZIP 1.x and replaced them with (although several levels of deflation were provided by the program). The resulting file format has since become ubiquitous on and on the – almost all files with the.ZIP (or.zip) extension are in PKZIP 2.x format, and utilities to read and write these files are available on all common platforms.