Xref: utzoo comp.binaries.ibm.pc.d:15199 alt.msdos.programmer:2790 comp.os.msdos.apps:2170 comp.os.msdos.programmer:5654
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From: callawaycj@EA.USL.EDU (C.JamesCallaway)
Newsgroups: comp.binaries.ibm.pc.d,alt.msdos.programmer,comp.os.msdos.apps,comp.os.msdos.programmer
Subject: Re: Control-C blocker needed
Message-ID: <0094A28F.A230B060@EA.USL.EDU>
Date: 15 Jun 91 15:50:33 GMT
References: <MORGAN.91Jun7140438@chaos.cs.brandeis.edu>,<1991Jun11.151950.2097@gupta.portal.com>
Sender: anon@rouge.usl.edu
Reply-To: callawaycj@EA.USL.EDU (C.JamesCallaway)
Followup-To: comp.binaries.ibm.pc.d
Organization: U.S.L. - Home Of The Ragin' Cajuns - Ragin' Roar!
Lines: 32

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.

An ISR Device Driver That Intercepts INT09h(BIOS Keyboard Handler) Or
INT1Bh(BIOS CtrlBRK) Or INT23h(BIOS CtrlC Handler), Might Do The Trick.


Let Me Know If You Find Something. Maybe I Could Use It, Too.

--

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