Path: utzoo!utgpu!news-server.csri.toronto.edu!bonnie.concordia.ca!uunet!nwnexus!apex!rennyk
From: rennyk@apex.com (Renny K)
Newsgroups: comp.binaries.ibm.pc.d
Subject: Re: Control-C blocker needed
Message-ID: <1991Jun17.154407.9896@apex.com>
Date: 17 Jun 91 15:44:07 GMT
References: <MORGAN.91Jun7140438@chaos.cs.brandeis.edu> <1991Jun11.151950.2097@gupta.portal.com> <0094A28F.A230B060@EA.USL.EDU>
Reply-To: rennyk@apex.UUCP (Renny K)
Organization: Apex Computer Co., Redmond  WA
Lines: 46

In article <0094A28F.A230B060@EA.USL.EDU> callawaycj@EA.USL.EDU (C.JamesCallaway) writes:
>In article <1991Jun11.151950.2097@gupta.portal.com>, max@gupta.portal.com (Max Rochlin) writes:
>>In article <MORGAN.91Jun7140438@chaos.cs.brandeis.edu> morgan@chaos.cs.brandeis.edu (Dylan Kaufman) writes:
>>>
>>>which will let
>>>me completely block out Ctrl-C and Ctrl-Break during execution of the
>>>AUTOEXEC.BAT
>>
>>Try making the first line of your autoexec.bat  BREAK OFF  
>
>
>The BREAK Command Is Used To Control The Frequency That MS-DOS Checks For The
><CTRL-C>  Or <CTRL-Break> Combinations.  The Command BREAK OFF Directs MS-DOS
>To Check For The Key Combinations Only During Input And Output Operations.
>
>BREAK ON Will Allow MS-DOS To Check Whenever A Call Is Made To The Operating 
>System's Service Functions.
>
>So In This Case BREAK OFF Will Not Give The Results Asked.
>

I've had the same need, and I did write a TSR to do the job.  It's really
an unusual program, because it loads BEFORE COMMAND.COM and as such, will
protect you from anyone hitting Control-C or Control-Break during the 
AUTOEXEC file execution.

The only problem I've seen is that when you're using Borland's Turbo
products, and do a File/OS Shell, they install a Break Handler which
overcomes the ISR I've installed.  Once you quit the shell that was 
invoked via Turbo XXXX, and quit Turbo XXXX, then my TSR does it's job.

I've been using it under Novell Netware for about 2.5 years now without
any problems.

Please E-Mail me if you want the program (I'm new and don't know how to
post binaries to the text yet).

							Renny

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Renny Koshy						rennyk@apex.com
Apex Computer, Redmond, WA.
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Renny Koshy						rennyk@apex.com
Apex Computer, Redmond, WA.