PKZIP
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- This article is about the software. For the file format, see ZIP.
PKZIP is a line of compression/archiving software, known for its association with the ZIP file format. It was developed by PKWARE.
In some versions, the utility named PKZIP only does compression, and the companion PKUNZIP utility does decompression.
Contents |
Native formats
- ZIP
- DEFLATE
- Certain Self-extracting ZIP formats
See also
- PKARC/PKPAK (predecessor)
Software
Software for DOS
Main-line shareware and public beta versions:
- v0.90 (1989-02-01): pkz090.exe
- v0.92 (1989-03-06): pkz092.exe
- v1.01 (1989-07-21): pkz101.exe
- v1.02 (1989-10-01): pkz102.exe
- v1.10 (1990-03-15): pkz110.exe
- v1.93-alpha (1991-10-15): PKZ193A.EXE
- v2.04c (1992-12-28): PKZ204C.EXE
- v2.04e (1993-01-25): PKZ204E.EXE
- v2.04g (1993-02-01): PKZ204G.EXE
- v2.50 (1999-03-01): pk250dos.exe
Other versions: (See the #Notes section below for more information.)
- v0.80-beta (1989-01-10): PKZ080.ZIP (Unclear if this is a leaked private beta, or what.)
- v1.00-beta (1989-06-30): See old-dos.ru link below. (Probably a leaked private beta.)
- v1.10 "export" version (no encryption): pkz110eu.exe
- v1.10 AV-enabled ("registered"): MAKEAV.ZIP - Has an example of such a file, and a crude hacking utility to make more.
- Fake "v2.01" (1992-03-15): D3SMARTP.ZIP → SMARTP1A.ZIP → PK*.EXE - A hack of v1.93-alpha
- v2.04e registered: No complete copy found, but bhtoolkt.zip contains a few files from it: ZIP2EXE.EXE, PKZIPFIX.EXE, PKCFG.EXE, PUTAV.EXE
- UPD204E.ZIP - Upgrades registered 2.04c to 2.04e.
- v2.04g registered: See old-dos.ru link below.
- PK204C2G.ZIP - Upgrades registered 2.04c to 2.04g.
- PK204E2G.ZIP - Upgrades registered 2.04e to 2.04g.
- v2.04g "Shareware Marketing" shareware: [1] → BUSINESS/PKZIP/PKZIP.ZIP
- v2.04.02-01-93 "AB Soft" registered (French): See old-dos.ru link below.
- v2.06 IBM licensed: See old-dos.ru link below.
- v2.50 registered: See old-dos.ru link below.
- pk250upd.zip - Upgrades registered 2.04g to 2.50.
Various versions:
Software for OS/2
- v1.01 (1989-07-21): PKZ101_2.ZIP
- v1.02 (1989-10-01): PKZOS2.ZIP
- v1.09, IBM licensed (1991-01-15): OS2PKZIP.ZIP
- v2.50 (1997-05-01): pkos2250.exe
Software for Windows 3.x
- v2.01 (1996-02-15): pkzws201.zip
- v2.50 (1996-09-15): pk250w16.zip
- v2.60 (1997-12-15): pk260w16.exe
- v2.60.02 (1998-07-15): [2] → pk262w16.exe
- v2.60.03 (1998-11-01): pk263w16.exe
Software for 32-bit Windows, command line
- v2.50 (1998-04-15): pk250c32.exe
- v2.50, DEC Alpha architecture: AlphaNT FTP → Utilities/pk250c_a.exe
- v4.00: pkzc400s.exe
Software for 32/64-bit Windows, GUI
(Selected versions, mainly historical)
Caution: Some 2.x versions are adware, and may be detected as malware.
- v2.50 (1996-09-15): pk250w32.zip
- v2.60 (1997-12-15): pk260w32.exe
- v2.60, DEC Alpha architecture: AlphaNT FTP → Utilities/pk260w_a.exe
- v2.60.01(?) (1998-06-01): internet.au - CDrom Disc 3, Dec. 1998 → emailftp/win95/pk26cnet.exe
- v2.60.02 (1998-07-15): Best Sellers 33 → _UTILS/PKWARE/PK262WSP/pk262wsp.exe
- v2.60.03 (1998-11-01): pk263wsp.exe
- v2.70 (1999-06-01): pk270wsp.exe
- v4.00: [3] → pkzw400s.EXE
Related official software
- PKZF10.EXE - PKZFIND (File Finder Plus) v1.00 (1989-02-01)
- pkzf11.zip - PKZFIND v1.1 (1989-10-20)
- PKCNVT11.ZIP - PKCNVT, PKCNVZOO, PKCNVLZH (~1990-02-12) - Format conversion utilities
- pkzm100.zip - PKZMENU v1.00 (~1991-02-07)
- PKZM104.EXE - PKZMENU v1.04 (~1991-02-14)
- PKZF15.ZIP - PKZFIND 1.50 and PKZOOM 1.5 (~1995-06-15)
Notes
Registered versions
Registered users of v1.10 could request a code to use with the PUTAV utility. PUTAV could then be used to modify PKZIP.EXE from the shareware version, to turn it into a kind of registered version, with "AV" feature enabled (-! option). Specifically, it modifies the 58 bytes starting at offset 33874, which are all 0 in the shareware version.
v2.x is similar, but there is now a special registered PKZIP.EXE, and only it can be modified in this way.
International versions
For some context regarding international versions ("Shareware Marketing", "AB Soft", etc.), see the ORDER.DOC file from, say, v2.04g.
It's unclear how many international versions existed.
