http://fileformats.archiveteam.org/api.php?action=feedcontributions&feedformat=atom&user=Kragen 2026-06-27T00:33:10Z User contributions MediaWiki 1.19.2 http://fileformats.archiveteam.org/wiki/LHA 2014-06-17T18:41:17Z

<p>Kragen: adding my memory of why we used LZH instead of ZIP in the early 1990s.</p> <hr /> <div>{{FormatInfo<br /> |subcat=Archiving<br /> |extensions={{ext|lha}}, {{ext|lzh}}<br /> |mimetypes={{mimetype|application/x-lzh-compressed}}<br /> |pronom={{PRONOM|fmt/626}}<br /> |released=1988<br /> }}<br /> '''LHA''' is an archiving program and file format created by Haruyasu Yoshizaki in 1988. It was originally called LHArc, then was briefly LH before settling on LHA. In the 1990s it was the most popular archiving format on the Amiga platform, and also got some use on the PC platform including in the installers for id Software games such as Doom and Quake, because [[ZIP]] compression was inferior until the release of PKZip 2.04 (I think 2.04g), which brought the formats to parity (I think by adding DEFLATE compression? can anyone verify this?). At present, it is mostly used in Japan.<br /> <br /> The file format is also known as '''LZH'''.<br /> <br /> == Format documentation ==<br /> * [http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/Notes/Notes.html Notes on header format]<br /> * [http://apple2.org.za/gswv/a2zine/GS.WorldView/Resources/The.MacShrinkIt.Project/ARCHIVES.TXT Archive format info]<br /> * [http://www.textfiles.com/programming/FORMATS/arc_fmts.txt LZH file header format (among other archive types)]<br /> <br /> == Software ==<br /> * [http://homepage1.nifty.com/dangan/en/Content/Program/Java/jLHA/jLHA.html Java library]<br /> * [http://www.ponsoftware.com/en/ Explzh for Windows]<br /> * [[7-Zip]]<br /> <br /> == Other links ==<br /> * [[Wikipedia:LHA (file format)|Wikipedia article]]</div>

Kragen