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From: jsilva@cogsci.berkeley.edu (John Silva)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Microwaves, _video, & switchar
Message-ID: <9382@pasteur.Berkeley.EDU>
Date: 2 Feb 89 00:22:34 GMT
References: <32972@tut.cis.ohio-state.edu> <1796@bingvaxu.cc.binghamton.edu>
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Reply-To: jsilva@cogsci.berkeley.edu.UUCP (John Silva)
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In article <1796@bingvaxu.cc.binghamton.edu> sullivan@phyllis.math.binghamton.edu writes:
>
>Use of switchar other than '/' breaks some programs, notably Norton Utilities.
>
>Fred Sullivan				SUNY at Binghamton
>Dept. Math. Sciences			Binghamton, NY 13903
>					sullivan@marge.math.binghamton.edu

Norton utilities appear to have been designed to specifically BREAK when 
switchar is other than '/'.  If you search for the byte sequence

B80037CD2180FA2F7405
		^^
and change the indicated 74h to EBh (changes a JZ instruction to JMP),
Norton utilities will function correctly with an altered switchar.

This sequence is found in every one of the utilities, and has been the same
since version 3 at least.

Keep in mind that although NORTON.EXE functions when patched, it cannot find
it's help file unless the path is built using the backslash ('\').

-J.

---
John P. Silva
INTERNET : jsilva@cogsci.berkeley.edu           "You don't know what you're
UUCP     : {backbone}!ucbvax!cogsci!jsilva       getting into, friend..."