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			<title>AppleShare PC 2.0.1: Use COMPAT.COM for Compatibility</title><body class="ac-gn-current-support">
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<h1 id="main-title">AppleShare PC 2.0.1: Use COMPAT.COM for Compatibility</h1>
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<div id="intro-container"><div class="truncate"><div class="attr SYMPTOMS"><div class="attr TOPIC"><FONT SIZE=4> </FONT><BR>
<FONT SIZE=4> <BR>
I have a DOS machine with a LocalTalk PC Card running AppleShare PC 2.0.1, and<BR>
I'm trying to run TCP/Connect through the card.<BR>
 <BR>
TCP/Connect was configured to run with AppleTalk; however, when running version<BR>
2.0.1 of AppleShare PC, I get an error that &quot;AppleTalk was not initialized with<BR>
the proper interrupt&quot;.  TCP/Connect claims that this product worked with<BR>
AppleShare PC 1.X.X, and that it uses interrupt #60.<BR>
 <BR>
Were the interrupts changed from version 1 to 2?  If yes, what interrupt range<BR>
can be used by the software?<BR>
 <BR>
</FONT></div></div> <!--  attr Symptom  --></div> <!--  truncate --></div> <!--  intro-container --><div class="clear"> </div>
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  <div class="attr SUMMARY">
It's not surprising that a product layered on top of the protocol stack in<BR>
AppleShare PC 1.X wouldn't automatically work with AppleShare PC 2.0.1.  Apple<BR>
totally reworked the interface to make it more accessible to developers, and we<BR>
changed the way we interfaced with MS-DOS.  This includes the interrupts used.<BR>
 <BR>
There should be a relatively simple solution to the problem.<BR>
 <BR>
There is a program that ships with AppleShare PC 2.0.1 that tries to ensure<BR>
compatibility with programs that layered on top of older versions of AppleShare<BR>
PC.  This program is called COMPAT.COM.  You should run it immediately after<BR>
you run ATALK.COM (most likely in a batch file).  It intercepts the old style<BR>
calls and reroutes them to the new API.<BR>
 <BR>
<BR></div>
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<div class="mod-date">Published Date: Feb 18, 2012</div>
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