http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Microsoft_KWAJ_installation_compression Microsoft KWAJ installation compression - Revision history 2026-04-09T19:57:07Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Microsoft_KWAJ_installation_compression&diff=44224&oldid=prev JTN: /* Software */ more details on libmspack 2023-02-28T19:34:59Z <p>‎<span dir="auto"><span class="autocomment">Software: </span> more details on libmspack</span></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 19:34, 28 February 2023</td> </tr><tr><td colspan="2" class="diff-lineno">Line 37:</td> <td colspan="2" class="diff-lineno">Line 37:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://archive.org/details/msdn-1996-04 MSDN Library - April 1996] → MSDN15_1.iso → MSDNSMPL/PROD/EISPAK11/DECOMP.EXE - Decompression utility for DOS; supports compression methods 2, 3, 4</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://archive.org/details/msdn-1996-04 MSDN Library - April 1996] → MSDN15_1.iso → MSDNSMPL/PROD/EISPAK11/DECOMP.EXE - Decompression utility for DOS; supports compression methods 2, 3, 4</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* [https://www.cabextract.org.uk/libmspack/ libmspack]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* [https://www.cabextract.org.uk/libmspack/ libmspack] <ins class="diffchange diffchange-inline">→ msexpand (decompress only) </ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{Deark}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{Deark}}</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> </table> JTN http://fileformats.archiveteam.org/index.php?title=Microsoft_KWAJ_installation_compression&diff=43832&oldid=prev Jsummers: Sample files 2023-01-07T20:28:52Z <p>Sample files</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 20:28, 7 January 2023</td> </tr><tr><td colspan="2" class="diff-lineno">Line 41:</td> <td colspan="2" class="diff-lineno">Line 41:</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>See also [[MS-DOS installation compression#Software]].</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>See also [[MS-DOS installation compression#Software]].</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;">== Sample files ==</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;">Compression method 2:</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;">* {{CdTextfiles|ccbwindows94/DRIVERS/MOUSE901.ZIP|MOUSE901.ZIP}} → *.??$</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;"></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;">Compression method 3:</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;">* {{CdTextfiles|simtel/simtel9606/WIN3/INET/POWERTCP.ZIP|POWERTCP.ZIP}}</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;">* {{CdTextfiles|simtel/simtel9606/WIN3/PRINT/PRTFRM41.ZIP|PRTFRM41.ZIP}}</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;">* {{CdTextfiles|cica/cica9404/WIN3/MISC/NSWP20.ZIP|NSWP20.ZIP}}</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;">* [https://archive.org/download/ms-dos-6.2 MS-DOS 6.2] → *.IMA → *.??_</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;"></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;">Compression method 4:</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;">* [https://archive.org/details/MicrosoftWorks3.01994English Microsoft Works 3.0] → MMWORKS300.iso → MSWORKS/*.??_</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>[[Category:Microsoft]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:MS-DOS]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:MS-DOS]]</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Microsoft_KWAJ_installation_compression&diff=43830&oldid=prev Jsummers at 16:29, 7 January 2023 2023-01-07T16:29:09Z <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 16:29, 7 January 2023</td> </tr><tr><td colspan="2" class="diff-lineno">Line 30:</td> <td colspan="2" class="diff-lineno">Line 30:</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> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">File </del>begin with bytes {{magic|4b 57 41 4a 88 f0 27 d1}}.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">Files </ins>begin with bytes {{magic|4b 57 41 4a 88 f0 27 d1}}.</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>== Specifications ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Specifications ==</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 36:</td> <td colspan="2" class="diff-lineno">Line 36:</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>== Software ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del style="color: red; font-weight: bold; text-decoration: none;">* [https://www.cabextract.org.uk/libmspack/ libmspack]</del></div></td><td colspan="2">&#160;</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://archive.org/details/msdn-1996-04 MSDN Library - April 1996] → MSDN15_1.iso → MSDNSMPL/PROD/EISPAK11/DECOMP.EXE - Decompression utility for DOS; supports compression methods 2, 3, 4</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* [https://archive.org/details/msdn-1996-04 MSDN Library - April 1996] → MSDN15_1.iso → MSDNSMPL/PROD/EISPAK11/DECOMP.EXE - Decompression utility for DOS; supports compression methods 2, 3, 4</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;">* [https://www.cabextract.org.uk/libmspack/ libmspack]</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;">* {{Deark}}</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>See also [[MS-DOS installation compression#Software]].</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>See also [[MS-DOS installation compression#Software]].</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>[[Category:Microsoft]]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>[[Category:Microsoft]]</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;">[[Category:MS-DOS]]</ins></div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Microsoft_KWAJ_installation_compression&diff=43825&oldid=prev Jsummers: Split off from MS-DOS installation compression 2023-01-07T15:51:47Z <p>Split off from MS-DOS installation compression</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Compression<br /> |extensions={{ext|??_}}, {{ext|??$}}<br /> |pronom={{PRONOM|fmt/469}}<br /> |wikidata={{wikidata|Q105850885}}<br /> }}<br /> '''Microsoft KWAJ installation compression''' refers to a compressed file format used for software installation by Microsoft and their installer tools. &quot;KWAJ&quot; refers to the signature bytes at the beginning of a compressed file.<br /> <br /> KWAJ is a relative of some similar formats, most importantly the one known as &quot;SZDD&quot;. For the other formats, see [[MS-DOS installation compression]] and [[Microsoft SZ installation compression]].<br /> <br /> KWAJ is more sophisticated than SZDD, though the relationship between them is not clear.<br /> <br /> == Format details ==<br /> There is a 16-bit field at offset 8 that specifies the compression or encoding method.<br /> <br /> {| class=&quot;wikitable&quot;<br /> !Compression code !! Description<br /> |-<br /> |0 || Uncompressed (rare)<br /> |-<br /> |1 || [[Exclusive Or|XOR]] (rare)<br /> |-<br /> |2 || [[LZSS (Haruhiko Okumura)|Okumura's LZSS]]<br /> |-<br /> |3 || [[LZ77 with Huffman coding|LZ77 + Huffman]]<br /> |-<br /> |4 || [[MSZIP]] (based on [[DEFLATE]])<br /> |}<br /> <br /> == Identification ==<br /> File begin with bytes {{magic|4b 57 41 4a 88 f0 27 d1}}.<br /> <br /> == Specifications ==<br /> * [https://www.cabextract.org.uk/libmspack/doc/szdd_kwaj_format.html libmspack: COMPRESS.EXE file formats]<br /> <br /> == Software ==<br /> * [https://www.cabextract.org.uk/libmspack/ libmspack]<br /> * [https://archive.org/details/msdn-1996-04 MSDN Library - April 1996] → MSDN15_1.iso → MSDNSMPL/PROD/EISPAK11/DECOMP.EXE - Decompression utility for DOS; supports compression methods 2, 3, 4<br /> <br /> See also [[MS-DOS installation compression#Software]].<br /> <br /> [[Category:Microsoft]]</div> Jsummers