HAP

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There are probably just two publicly-distributable versions of HAP: v2.10 and v3.00. There are other versions that are commercial software. The file format is proprietary.
 
There are probably just two publicly-distributable versions of HAP: v2.10 and v3.00. There are other versions that are commercial software. The file format is proprietary.
  
HAP 2.10 compresses a single file. HAP 3.00+ makes multi-file compressed archives.
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HAP 2.10 compresses a single file. HAP 3.00 makes multi-file compressed archives.
  
 
The HAP software consists of a "HAP" program for compression, and a "PAH" program for decompression.
 
The HAP software consists of a "HAP" program for compression, and a "PAH" program for decompression.
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* HAP
 
* HAP
 
** [https://archive.org/details/msdos_festival_HAPPAH21 v2.10] (1992-03-11)
 
** [https://archive.org/details/msdos_festival_HAPPAH21 v2.10] (1992-03-11)
** [https://archive.org/details/HAP300_ZIP Hap & Pah 3.00] (1992-11-15)
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** [https://archive.org/details/HAP300_ZIP Hap
** [http://www.nfbnet.org/files/compress/HAP300.ZIP HAP300.ZIP] - Same as previous
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** {{CdTextfiles|simtel/simtel9510/disk2/DISC2/ARCHIVER/HAP300RE.ZIP|HAP300RE.ZIP}} (1994-01-07?)
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** [https://www.sac.sk/download/pack/hap305bp.com hap305bp.com] (1996-03-21)
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** [https://feldmann.home.xs4all.nl/products.htm Hamarsoft products] → [https://feldmann.home.xs4all.nl/hap305bp.zip HAP 3.05bp] (actually 3.06, 1997-07-30)
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** [https://www.sac.sk/download/pack/hap306.zip hap306.zip] - Same as previous
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** [https://www.sac.sk/download/pack/hap40td2.zip hap40td2.zip] (1996-06-18?) - Non-functional HAP 4.02 demo, also includes HAP 3.00.
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* [http://old-dos.ru/index.php?page=files&mode=files&do=show&id=1718 THap] (TinyHap) by Alexander Krupnik (DOS binary + assembly language source code)
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== Sample files ==
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* https://telparia.com/fileFormatSamples/archive/hap/
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== Links ==
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* [https://feldmann.home.xs4all.nl/products.htm Hamarsoft products]
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[[Category:Compression]]
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Revision as of 02:54, 28 December 2023

File Format
Name HAP
Ontology
Extension(s) .hap
Released 1992

HAP (or Hap, or Hap and Pah) is compression software for DOS, developed by Harald Feldmann and Hamarsoft.

There are probably just two publicly-distributable versions of HAP: v2.10 and v3.00. There are other versions that are commercial software. The file format is proprietary.

HAP 2.10 compresses a single file. HAP 3.00 makes multi-file compressed archives.

The HAP software consists of a "HAP" program for compression, and a "PAH" program for decompression.

Identification

V3.00 files start with the byte 0x91, followed by ASCII "3HF".

V2.10 files seem to start with bytes 91 4a 2e.

Software

Note that the 3.x releases below all contain the same software. Only the documentation is updated.

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