http://fileformats.archiveteam.org/index.php?action=history&feed=atom&title=Realia_Spacemaker Realia Spacemaker - Revision history 2026-04-21T14:29:54Z Revision history for this page on the wiki MediaWiki 1.19.2 http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=51589&oldid=prev Jsummers: /* Software */ 2026-03-20T17:50:23Z <p>‎<span dir="auto"><span class="autocomment">Software</span></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 17:50, 20 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 42:</td> <td colspan="2" class="diff-lineno">Line 42:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://vetusware.com/download/Realia%20Spacemaker/?id=4297 At Vetusware]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://vetusware.com/download/Realia%20Spacemaker/?id=4297 At Vetusware]</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>== Sample files ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Sample files ==</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=51580&oldid=prev Jsummers at 19:48, 14 March 2026 2026-03-14T19:48:42Z <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 19:48, 14 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 13:</td> <td colspan="2" class="diff-lineno">Line 13:</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>For an EXE file to be compressible by Spacemaker, it should have the following properties:</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>For an EXE file to be compressible by Spacemaker, it should have the following properties:</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;">* The header field at offset 2, &quot;bytes in last page&quot;, must ''not'' be 0, due to a bug.</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* The header field at offset 12, &quot;max allocation&quot;, must be 0xffff.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* The header field at offset 12, &quot;max allocation&quot;, must be 0xffff.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* The header field at offset 26 must be 0.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* The header field at offset 26 must be 0.</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 35:</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;"><div>** [https://ftp.hanmesoft.com/HOBBES/DEC/rainbow/msdos/misc/spacemkr.lzh spacemkr.lzh]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://ftp.hanmesoft.com/HOBBES/DEC/rainbow/msdos/misc/spacemkr.lzh spacemkr.lzh]</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://archive.org/details/ftp.update.uu.se.2014.03 archive of ftp.update.uu.se] → pub/rainbow/msdos/misc/spacemkr.lzh</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://archive.org/details/ftp.update.uu.se.2014.03 archive of ftp.update.uu.se] → pub/rainbow/msdos/misc/spacemkr.lzh</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>** {{<del class="diffchange diffchange-inline">DiscMasterLink</del>|browse/11758/ftp.update.uu.se.2014.03.zip/ftp.update.uu.se/pub/rainbow/msdos/misc/spacemkr.lzh|<del class="diffchange diffchange-inline">at DiscMaster</del>}}</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>** <ins class="diffchange diffchange-inline">[</ins>{{<ins class="diffchange diffchange-inline">DiscMasterURL</ins>|browse/11758/ftp.update.uu.se.2014.03.zip/ftp.update.uu.se/pub/rainbow/msdos/misc/spacemkr.lzh<ins class="diffchange diffchange-inline">}}]</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 class="diffchange diffchange-inline">** [{{DiscMasterURL</ins>|<ins class="diffchange diffchange-inline">browse/29984/wbiz0000-0009/wbiz0004.tar/wbiz0004/EXE2COM.ARC</ins>}}<ins class="diffchange diffchange-inline">]</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 class="diffchange diffchange-inline">** [https://archive.org/details/the-cia-world-fact-book The CIA World Fact Book...] → SEL/12/0048/EXE2COM.EXE</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=51567&oldid=prev Jsummers at 16:30, 7 March 2026 2026-03-07T16:30:46Z <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 16:30, 7 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 8:</td> <td colspan="2" class="diff-lineno">Line 8:</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>It compresses [[DOS executable (.com)|COM]] files (to COM), and [[MS-DOS EXE|EXE]] files (to EXE or COM).</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>It compresses [[DOS executable (.com)|COM]] files (to COM), and [[MS-DOS EXE|EXE]] files (to EXE or COM).</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;">== Discussion ==</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;">Two versions have been found: 1.03 and 1.06. They create files that are slightly different. All compressed files found in the wild seem to be consistent with having been made by one of these two versions.</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;">For an EXE file to be compressible by Spacemaker, it should have the following properties:</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;">* The header field at offset 12, &quot;max allocation&quot;, must be 0xffff.</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;">* The header field at offset 26 must be 0.</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;">* No overlay.</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> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>(<del class="diffchange diffchange-inline">Only versions 1</del>.<del class="diffchange diffchange-inline">03 and 1.06 have been evaluated.)</del></div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">For COM format, the first 18 bytes match the pattern:</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>&#160;</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 class="diffchange diffchange-inline"> 9c 55 56 8c cd 83 c5 10 8d b6 ?? ?? 56 be ?? ??</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 class="diffchange diffchange-inline"> 56 cb</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>&#160;</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 class="diffchange diffchange-inline">In pristine files, this is followed by the ASCII string &quot;{{magic|MEMORY$}}&quot;.</ins></div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>&#160;</div></td></tr> <tr><td colspan="2">&#160;</td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">For EXE format, the same pattern appears at the start of the ''code image'' segment </ins>(<ins class="diffchange diffchange-inline">refer to [[MS-DOS_EXE#Special file positions]]), which is probably always offset 512 in pristine files</ins>.</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, </del>and <del class="diffchange diffchange-inline">have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">It is possible to distinguish between version 1.03 </ins>and <ins class="diffchange diffchange-inline">1.06</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'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div><del class="diffchange diffchange-inline">Compressed </del>EXE <del class="diffchange diffchange-inline">files apparently have {{magic|9c 55 56 8c cd 83 c5}} at offset 512</del>, <del class="diffchange diffchange-inline">and ASCII </del>&quot;<del class="diffchange diffchange-inline">{{magic|MEMORY$}}</del>&quot; <del class="diffchange diffchange-inline">at offset 530</del>.</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">It is possible to determine the original format, COM or </ins>EXE<ins class="diffchange diffchange-inline">. For instance</ins>, <ins class="diffchange diffchange-inline">if the original format was EXE, there are 9 consecutive 0x90 bytes in the decompressor code. Exception: The </ins>&quot;<ins class="diffchange diffchange-inline">&lt;code&gt;/S&lt;/code&gt;</ins>&quot; <ins class="diffchange diffchange-inline">option makes it impossible to tell that the original format was EXE</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>== Software ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Software ==</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=51546&oldid=prev Jsummers: /* Software */ 2026-03-02T16:23:42Z <p>‎<span dir="auto"><span class="autocomment">Software</span></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 16:23, 2 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 17:</td> <td colspan="2" class="diff-lineno">Line 17:</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>* [https://ftp.hanmesoft.com/HOBBES/DEC/rainbow/msdos/misc/spacemkr.lzh <del class="diffchange diffchange-inline">Spacemaker v1</del>.03]</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div><ins class="diffchange diffchange-inline">* Spacemaker v1.03:</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 class="diffchange diffchange-inline">*</ins>* [https://ftp.hanmesoft.com/HOBBES/DEC/rainbow/msdos/misc/spacemkr.lzh <ins class="diffchange diffchange-inline">spacemkr.lzh]</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 class="diffchange diffchange-inline">** [https://archive.org/details/ftp.update.uu.se.2014</ins>.03 <ins class="diffchange diffchange-inline">archive of ftp.update.uu.se</ins>] <ins class="diffchange diffchange-inline">→ pub/rainbow/msdos/misc/spacemkr.lzh</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 class="diffchange diffchange-inline">** {{DiscMasterLink|browse/11758/ftp.update.uu.se.2014.03.zip/ftp.update.uu.se/pub/rainbow/msdos/misc/spacemkr.lzh|at DiscMaster}}</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=51545&oldid=prev Jsummers: /* Sample files */ 2026-03-02T16:18:40Z <p>‎<span dir="auto"><span class="autocomment">Sample files</span></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 16:18, 2 March 2026</td> </tr><tr><td colspan="2" class="diff-lineno">Line 23:</td> <td colspan="2" class="diff-lineno">Line 23:</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>== Sample files ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Sample files ==</div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/DIRUTL/DATER11.ZIP|DATER11.ZIP}} → DATER.COM</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/DIRUTL/DATER11.ZIP|DATER11.ZIP}} → DATER.COM <ins class="diffchange diffchange-inline">(v1.03 EXE→COM)</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* {{CdTextfiles|pcsig08/101_200/DISK0191/DISK0191.ZIP|DISK0191.ZIP}} → DVED.COM</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* {{CdTextfiles|pcsig08/101_200/DISK0191/DISK0191.ZIP|DISK0191.ZIP}} → DVED.COM <ins class="diffchange diffchange-inline">(v1.03 COM→COM)</ins></div></td></tr> <tr><td class='diff-marker'>−</td><td style="background: #ffa; color:black; font-size: smaller;"><div>* {{CdTextfiles|pdos9606/GAMES/ROLEPLAY/NHPLUS.ZIP|NHPLUS.ZIP}} → GETYN.COM</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>* {{CdTextfiles|pdos9606/GAMES/ROLEPLAY/NHPLUS.ZIP|NHPLUS.ZIP}} → GETYN.COM <ins class="diffchange diffchange-inline">(v1.03 EXE→COM)</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 class="diffchange diffchange-inline">* [https://archive.org/details/shareware-grab-bag Shareware Grab-Bag] → 090/dutils.arc (v1.06; some EXE→COM, some COM→COM)</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 class="diffchange diffchange-inline">* {{CdTextfiles|swextrav1993/disk2/business/ck2.zip|ck2.zip}} → C*.EXE (v1.03)</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 class="diffchange diffchange-inline">* {{CdTextfiles|swextrav1993/disk3/prntutil/canset11.zip|canset11.zip}} → *.EXE (v1.06)</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{DexvertSamples|archive/spaceMakerPacked}}</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{DexvertSamples|archive/spaceMakerPacked}}</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> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=50453&oldid=prev Jsummers: /* Sample files */ 2025-06-22T18:03:56Z <p>‎<span dir="auto"><span class="autocomment">Sample files</span></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 18:03, 22 June 2025</td> </tr><tr><td colspan="2" class="diff-lineno">Line 26:</td> <td colspan="2" class="diff-lineno">Line 26:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{CdTextfiles|pcsig08/101_200/DISK0191/DISK0191.ZIP|DISK0191.ZIP}} → DVED.COM</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{CdTextfiles|pcsig08/101_200/DISK0191/DISK0191.ZIP|DISK0191.ZIP}} → DVED.COM</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{CdTextfiles|pdos9606/GAMES/ROLEPLAY/NHPLUS.ZIP|NHPLUS.ZIP}} → GETYN.COM</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* {{CdTextfiles|pdos9606/GAMES/ROLEPLAY/NHPLUS.ZIP|NHPLUS.ZIP}} → GETYN.COM</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;">* {{DexvertSamples|archive/spaceMakerPacked}}</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>== Links ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=44667&oldid=prev Jsummers at 12:28, 24 July 2023 2023-07-24T12:28:23Z <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 12:28, 24 July 2023</td> </tr><tr><td colspan="2" class="diff-lineno">Line 10:</td> <td colspan="2" class="diff-lineno">Line 10:</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>(Only <del class="diffchange diffchange-inline">version </del>1.03 and 1.06 have been evaluated.)</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>(Only <ins class="diffchange diffchange-inline">versions </ins>1.03 and 1.06 have been evaluated.)</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>Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, and have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, and have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18.</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 21:</td> <td colspan="2" class="diff-lineno">Line 21:</td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://vetusware.com/download/Realia%20Spacemaker/?id=4297 At Vetusware]</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** [https://vetusware.com/download/Realia%20Spacemaker/?id=4297 At Vetusware]</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;">* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/DIRUTL/DATER11.ZIP|DATER11.ZIP}} → DATER.COM</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|pcsig08/101_200/DISK0191/DISK0191.ZIP|DISK0191.ZIP}} → DVED.COM</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|pdos9606/GAMES/ROLEPLAY/NHPLUS.ZIP|NHPLUS.ZIP}} → GETYN.COM</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>== Links ==</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>== Links ==</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=44660&oldid=prev Jsummers at 15:07, 22 July 2023 2023-07-22T15:07:51Z <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 15:07, 22 July 2023</td> </tr><tr><td colspan="2" class="diff-lineno">Line 10:</td> <td colspan="2" class="diff-lineno">Line 10:</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>(Only version 1.06 <del class="diffchange diffchange-inline">has </del>been evaluated.)</div></td><td class='diff-marker'>+</td><td style="background: #cfc; color:black; font-size: smaller;"><div>(Only version <ins class="diffchange diffchange-inline">1.03 and </ins>1.06 <ins class="diffchange diffchange-inline">have </ins>been evaluated.)</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>Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, and have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18.</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, and have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18.</div></td></tr> <tr><td colspan="2" class="diff-lineno">Line 17:</td> <td colspan="2" class="diff-lineno">Line 17:</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 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://ftp.hanmesoft.com/HOBBES/DEC/rainbow/msdos/misc/spacemkr.lzh Spacemaker v1.03]</ins></div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>* Spacemaker v1.06:</div></td></tr> <tr><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td><td class='diff-marker'>&#160;</td><td style="background: #eee; color:black; font-size: smaller;"><div>** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar</div></td></tr> </table> Jsummers http://fileformats.archiveteam.org/index.php?title=Realia_Spacemaker&diff=44658&oldid=prev Jsummers: Created page with "{{FormatInfo |formattype=electronic |subcat=Compression |subcat2=Executable compression |released=1982? }} '''Realia Spacemaker''' (or just '''Spacemaker''') is an executable ..." 2023-07-22T12:39:07Z <p>Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Compression |subcat2=Executable compression |released=1982? }} &#039;&#039;&#039;Realia Spacemaker&#039;&#039;&#039; (or just &#039;&#039;&#039;Spacemaker&#039;&#039;&#039;) is an executable ...&quot;</p> <p><b>New page</b></p><div>{{FormatInfo<br /> |formattype=electronic<br /> |subcat=Compression<br /> |subcat2=Executable compression<br /> |released=1982?<br /> }}<br /> '''Realia Spacemaker''' (or just '''Spacemaker''') is an executable compression utility for DOS, developed by Realia. It was possibly the first executable compression utility for DOS to be released.<br /> <br /> It compresses [[DOS executable (.com)|COM]] files (to COM), and [[MS-DOS EXE|EXE]] files (to EXE or COM).<br /> <br /> == Identification ==<br /> (Only version 1.06 has been evaluated.)<br /> <br /> Compressed COM files apparently start with bytes {{magic|9c 55 56 8c cd 83 c5}}, and have ASCII &quot;{{magic|MEMORY$}}&quot; at offset 18.<br /> <br /> Compressed EXE files apparently have {{magic|9c 55 56 8c cd 83 c5}} at offset 512, and ASCII &quot;{{magic|MEMORY$}}&quot; at offset 530.<br /> <br /> == Software ==<br /> * Spacemaker v1.06:<br /> ** {{OldskoolDOSEXE}} → DOSEXE Executable Tools Pack → packers/spacemaker.106-realia.rar<br /> ** [https://vetusware.com/download/Realia%20Spacemaker/?id=4297 At Vetusware]<br /> <br /> == Links ==<br /> * [https://www.os2museum.com/wp/realia-spacemaker/ Realia SpaceMaker], at the OS/2 Museum<br /> ** [https://www.os2museum.com/wp/spacemaker-update/ SpaceMaker Update]<br /> * [https://archive.org/details/PC-Mag-1983-01/page/n415/mode/2up Advertisement in PC Magazine], Jan. 1983, p. 417</div> Jsummers