Re: Disabling an Internal DOS Command

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Article #5038

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#5038

From: Steve Chanin
Date: Tue, 05 Mar 1991 17:44

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To get rid of the dos cd command, run a binary editor on command.com.
Search for the string CD (in uppercase).  You should find what looks
like a table of all the dos builtin commands.  Move to where CD is and
change it to cd (lowercase).  Save command.com.  Reboot.  Since DOS
upcases commands before trying to match them against this table,
changing CD to cd will prevent DOS matching the command and it will
then look for cd.exe in your path.  For the last few weeks, I've been
running a version of 4.01 to which I applied this patch and haven't
had any problems.

Steve
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DOMAIN: sbchanin@oracle.com                                  Oracle Corporation
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Path: arc1-ca.pugleaf.net!utzoo!news-server.csri.toronto.edu!rutgers!uwm.edu!spool.mu.edu!uunet!fernwood!oracle!news
From: schanin@oracle.com (Steve Chanin)
Newsgroups: comp.os.msdos.programmer
Subject: Re: Disabling an Internal DOS Command
Message-ID: <SCHANIN.91Mar5094420@mailseq.oracle.com>
Date: 5 Mar 91 17:44:37 GMT
References: <1991Mar4.151301.12925@cbnewsk.att.com>
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In-reply-to: konopka@cbnewsk.att.com's message of 4 Mar 91 15:13:01 GMT

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