http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=OPAQue 2026-04-22T18:25:07Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=OPAQue&diff=39906&oldid=prev 2021-05-26T14:53:23Z

<p></p> <table class='diff diff-contentalign-left'> <col class='diff-marker' /> <col class='diff-content' /> <col class='diff-marker' /> <col class='diff-content' /> <tr valign='top'> <td colspan='2' style="background-color: white; color:black;">← Older revision</td> <td colspan='2' style="background-color: white; color:black;">Revision as of 14:53, 26 May 2021</td> </tr><tr><td colspan="2" class="diff-lineno">Line 7:</td> <td colspan="2" class="diff-lineno">Line 7:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>}}</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>{{DISPLAYTITLE:oPAQue}}'''oPAQue''' (also called '''PAQ''') is a compressed archive utility for DOS, and its associated file format. It was developed by Dmitry Dvoinikov, and distributed as freeware. It was originally named '''PAK'''.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>{{DISPLAYTITLE:oPAQue}}'''oPAQue''' (also called '''PAQ''') is a compressed archive utility for DOS, and its associated file format. It was developed by Dmitry Dvoinikov, and distributed as freeware. It was originally named '''PAK'''.</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;"></ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">== Disambiguation ==</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins style="color: red; font-weight: bold; text-decoration: none;">Not to be confused with other formats named [[PAQ]] or [[PAK]].</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Identification ==</div></td></tr> </table>

Jsummers http://fileformats.archiveteam.org/index.php?title=OPAQue&diff=39374&oldid=prev 2021-02-10T20:40:38Z

<p>Created page with &quot;{{FormatInfo |name=oPAQue |formattype=electronic |subcat=Archiving |extensions={{ext|paq}}, {{ext|pak}} |released=~1996 }} {{DISPLAYTITLE:oPAQue}}&#039;&#039;&#039;oPAQue&#039;&#039;&#039; (also called &#039;&#039;&#039;...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |name=oPAQue<br /> |formattype=electronic<br /> |subcat=Archiving<br /> |extensions={{ext|paq}}, {{ext|pak}}<br /> |released=~1996<br /> }}<br /> {{DISPLAYTITLE:oPAQue}}'''oPAQue''' (also called '''PAQ''') is a compressed archive utility for DOS, and its associated file format. It was developed by Dmitry Dvoinikov, and distributed as freeware. It was originally named '''PAK'''.<br /> <br /> == Identification ==<br /> More research needed.<br /> <br /> [[IDArc]] interprets the first 8 bytes of a file as four 16-bit little-endian integers, adds them together, and identifies it as oPAQue if the low 16 bits of the sum equals &lt;code&gt;0xaaaa&lt;/code&gt;.<br /> <br /> oPAQue files have been observed to start with &lt;code&gt;a0 38 2d 27 26 8c b7 be&lt;/code&gt;, which is consistent with that algorithm (sums to &lt;code&gt;0x1aaaa&lt;/code&gt;).<br /> <br /> But [http://tpi.osdn.jp/index.php/Dict:oPAQue this website] reports &lt;code&gt;bc 47 ce 93 40 11 e5 bd&lt;/code&gt;, which does not quite work -- it sums to &lt;code&gt;0x1aaaf&lt;/code&gt;.<br /> <br /> == Software ==<br /> * [{{SACFTPURL|pack|pak1_0.zip}} oPAQue v1.0]<br /> <br /> == Links ==<br /> * [https://web.archive.org/web/20030115063351/http://www.geocities.com/ResearchTriangle/6651/pak_page.htm 2003 archive of oPAQue website]<br /> * [http://tpi.osdn.jp/index.php/Dict:oPAQue Web page at tpi.osdn.jp]</div>

Jsummers