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Simtel MSDOS 1992 June
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SIMTEL_0692.cdr
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sysutl
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hot_36.arc
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HOT.DOC
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1988-12-27
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Hot-boot
by Jason Loveman
Hot-boot is an alternative mechanism for breaking out of a program
or situation that has gone astray. It augments the existing break
features of DOS and the PC--ctrl-alt-del and ctrl-break. The problem
with ctrl-alt-del (warm boot) is that it can take several minutes
in a machine which has a long autoexec procedure. Ctrl-break is a
better alternative, but it is frequently disabled by application
programs, or it may not be available because the runaway program
may not be doing DOS calls.
Hot-boot suffers none of these difficulties. It cannot be disabled
unless hard interrupts are disabled (in which case ctrl-alt-del
won't work either), it takes only a fraction of a second and does
not have to re-run any TSR's or other set-up programs from the
autoexec.
Instructions:
just run HOT.COM to install hot-boot
install hot-boot in your tsr list at the point(s) to which
you might want to restore.
do NOT run HOT after SideKick
CTRL-ALT-INS will invoke hot-boot.
example:
you have keyworks and sidekick resident - you want 2 Hotboots
(in autoexec)
hot
key
hot
sk
if you need to hotboot, ctrl-alt-ins will get you out of your application.
It will also dump sidekick.
Invoking hotboot (ctrl-alt-ins) a second time will dump keyworks.
IMPORTANT: after invoking hot-boot, it will remove itself. If you wish
to continue with hot-boot still installed, you must re-install it
by typing "hot".
Hotboot will not change your video mode at invocation.
If you invoke it when the screen is not in an alpha mode,
you will then have to use (mode mono or mode co80) to restore
your video mode.
Toad Hall Tweaks
v3.6 (assuming original was v3.5)
- Moved Page 0 save buffer to end of code space (reduces program size)
- Using the saved Int 9 vector in that buffer instead of other
(cruder, slower) methods.
David Kirschbaum
Toad Hall
kirsch@braggvax.ARPA