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		<id>http://fileformats.archiveteam.org/index.php?action=history&amp;feed=atom&amp;title=CompuShow_installer_format</id>
		<title>CompuShow installer format - Revision history</title>
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		<updated>2026-04-09T18:54:07Z</updated>
		<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=CompuShow_installer_format&amp;diff=51646&amp;oldid=prev</id>
		<title>Jsummers at 14:52, 8 April 2026</title>
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				<updated>2026-04-08T14:52:01Z</updated>
		
		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table class='diff diff-contentalign-left'&gt;
				&lt;col class='diff-marker' /&gt;
				&lt;col class='diff-content' /&gt;
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			&lt;tr valign='top'&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;← Older revision&lt;/td&gt;
			&lt;td colspan='2' style=&quot;background-color: white; color:black;&quot;&gt;Revision as of 14:52, 8 April 2026&lt;/td&gt;
			&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 4:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=≤1994&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;|released=≤1994&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;}}&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''CompuShow installer format''' is &lt;del class=&quot;diffchange diffchange-inline&quot;&gt;a &lt;/del&gt;[[MS-DOS EXE|EXE]]-based installer file for DOS.&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;'''CompuShow installer format''' is &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;an &lt;/ins&gt;[[MS-DOS EXE|EXE]]-based installer file for DOS.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;It was used for distribution of some software by Canyon State Systems:&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;It was used for distribution of some software by Canyon State Systems:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 21:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 21:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample files ==&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;== Sample files ==&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;−&lt;/td&gt;&lt;td style=&quot;background: #ffa; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* {{CdTextfiles|arcadebbs/GIFVIEW/CSHOW73.ZIP|CSHOW73.ZIP}} → CSHOWA.EXE&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;+&lt;/td&gt;&lt;td style=&quot;background: #cfc; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* {{CdTextfiles|arcadebbs/GIFVIEW/CSHOW73.ZIP|CSHOW73.ZIP}} → CSHOWA.EXE &lt;ins class=&quot;diffchange diffchange-inline&quot;&gt;[This is v8.73a, with a misleading filename.]&lt;/ins&gt;&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/GRAPHICS/2SHOW204.ZIP|2SHOW204.ZIP}} → 2SHOWA.EXE&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/GRAPHICS/2SHOW204.ZIP|2SHOW204.ZIP}} → 2SHOWA.EXE&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [{{SACFTPURL|graph|cmplg201.zip}} cmplg201.zip] → CMPLGA.EXE&lt;/div&gt;&lt;/td&gt;&lt;td class='diff-marker'&gt;&amp;#160;&lt;/td&gt;&lt;td style=&quot;background: #eee; color:black; font-size: smaller;&quot;&gt;&lt;div&gt;* [{{SACFTPURL|graph|cmplg201.zip}} cmplg201.zip] → CMPLGA.EXE&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

	<entry>
		<id>http://fileformats.archiveteam.org/index.php?title=CompuShow_installer_format&amp;diff=51644&amp;oldid=prev</id>
		<title>Jsummers: Created page with &quot;{{FormatInfo |formattype=electronic |subcat=Archiving |released=≤1994 }} '''CompuShow installer format''' is a EXE-based installer file for DOS.  It was used ...&quot;</title>
		<link rel="alternate" type="text/html" href="http://fileformats.archiveteam.org/index.php?title=CompuShow_installer_format&amp;diff=51644&amp;oldid=prev"/>
				<updated>2026-04-08T14:35:11Z</updated>
		
		<summary type="html">&lt;p&gt;Created page with &amp;quot;{{FormatInfo |formattype=electronic |subcat=Archiving |released=≤1994 }} &amp;#039;&amp;#039;&amp;#039;CompuShow installer format&amp;#039;&amp;#039;&amp;#039; is a &lt;a href=&quot;/wiki/MS-DOS_EXE&quot; title=&quot;MS-DOS EXE&quot;&gt;EXE&lt;/a&gt;-based installer file for DOS.  It was used ...&amp;quot;&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{FormatInfo&lt;br /&gt;
|formattype=electronic&lt;br /&gt;
|subcat=Archiving&lt;br /&gt;
|released=≤1994&lt;br /&gt;
}}&lt;br /&gt;
'''CompuShow installer format''' is a [[MS-DOS EXE|EXE]]-based installer file for DOS.&lt;br /&gt;
&lt;br /&gt;
It was used for distribution of some software by Canyon State Systems:&lt;br /&gt;
* CompuShow, v8.70-9.04&lt;br /&gt;
* CompuShow 2000, v1.03-2.04&lt;br /&gt;
* [[CompuLog]], v1.00-2.01&lt;br /&gt;
&lt;br /&gt;
A typical filename is &amp;quot;CSHOWA.EXE&amp;quot;, but note that not all files with this name use this format.&lt;br /&gt;
&lt;br /&gt;
== Format details ==&lt;br /&gt;
The format is somewhat convoluted. The main executable part is compressed with [[PKLITE]]. The overlay segment (refer to [[MS-DOS EXE#Special file positions]]) uses a tagged format of undetermined origin. The overlay starts with ASCII &amp;quot;&amp;lt;code&amp;gt;FBIN&amp;lt;/code&amp;gt;&amp;quot;. The main part of the payload is an [[LHA/LHarc self-extracting archive]] contained in an item identified by &amp;quot;&amp;lt;code&amp;gt;FBEX&amp;lt;/code&amp;gt;&amp;quot;.&lt;br /&gt;
&lt;br /&gt;
== Software ==&lt;br /&gt;
* {{Deark}}&lt;br /&gt;
* Some [[LHA#Software|LHA software]] is robust enough that it can often handle these files.&lt;br /&gt;
&lt;br /&gt;
== Sample files ==&lt;br /&gt;
* {{CdTextfiles|arcadebbs/GIFVIEW/CSHOW73.ZIP|CSHOW73.ZIP}} → CSHOWA.EXE&lt;br /&gt;
* {{CdTextfiles|simtel/stmsdos9709/disk1/DISC1/GRAPHICS/2SHOW204.ZIP|2SHOW204.ZIP}} → 2SHOWA.EXE&lt;br /&gt;
* [{{SACFTPURL|graph|cmplg201.zip}} cmplg201.zip] → CMPLGA.EXE&lt;/div&gt;</summary>
		<author><name>Jsummers</name></author>	</entry>

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