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From: mmm@nbires.UUCP (Michelle Melvin)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Memory Res. Prgs.
Message-ID: <966@nbires.UUCP>
Date: Mon, 19-Jan-87 18:28:59 EST
Article-I.D.: nbires.966
Posted: Mon Jan 19 18:28:59 1987
Date-Received: Tue, 20-Jan-87 18:50:05 EST
References: <1541@isis.UUCP> <1610003@hpcvlo.HP.COM>
Reply-To: mmm@nbires.UUCP (lloyd w. tabb)
Organization: NBI Inc, Boulder CO
Lines: 10

the proposed method of comparing interrupt handlers to determine
if a TSR program is already loaded is not sound.  it
is possible that some other TSR program has stolen your vector (has been
loaded after you and chained to that interrupt).  in this case your
handlers would NOT match but the program would be already loaded.  while
this would work most of the time it is not bullet proof.

flamingly,

lloyd w. tabb