http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=JGPAKJGPAK - Revision history2026-07-15T21:49:45ZRevision history for this page on the wikiMediaWiki 1.19.2http://fileformats.archiveteam.org/index.php?title=JGPAK&diff=51884&oldid=prevJsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|pak}} |released=≤1996 }} '''JGPAK''' is the signature of an obscure compressed installer-archive form..."2026-07-14T13:33:51Z<p>Created page with "{{FormatInfo |formattype=electronic |subcat=Archiving |extensions={{ext|pak}} |released=≤1996 }} '''JGPAK''' is the signature of an obscure compressed installer-archive form..."</p>
<p><b>New page</b></p><div>{{FormatInfo<br />
|formattype=electronic<br />
|subcat=Archiving<br />
|extensions={{ext|pak}}<br />
|released=≤1996<br />
}}<br />
'''JGPAK''' is the signature of an obscure compressed installer-archive format. It was used in at least two 32-bit Windows programs by Jan Goyvaerts: HelpScribble, and Magic MasterMind.<br />
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== Identification ==<br />
Files start with ASCII "{{magic|JGPAK}}", possibly always followed by bytes {{magic|00 01}}.<br />
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== Sample files ==<br />
* {{CdTextfiles|psl/pslv5nv12/PRGMMING/WIN/GENERAL/HELPSCR.ZIP|HELPSCR.ZIP}} (HelpScribble 3.0.4) → *.pak<br />
* [https://archive.org/details/blackhawk-for-windows-95-November-1996 Blackhawk For Windows 95 Nov. 1996] → games/magicmm.zip (Magic MasterMind) → MagicMM.pak</div>Jsummers