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Simtel MSDOS 1992 December
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simtel1292_SIMTEL_1292_Walnut_Creek.iso
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msdos
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procomm
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KEYBOARD.ARC
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KEYBOARD.DOC
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1988-08-26
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If you have an extended keyboard and your BIOS supports extended
keyboards, a flag is set in the BIOS data area indicating your hardware
configuration. PROCOMM PLUS (except version 1.0) looks at this flag and
if the BIOS indicates an extended keyboard, calls the extended keyboard
subfunction of INT 16 rather than the regular keyboard function to get
keys from the BIOS keyboard buffer. Some TSR programs (such as Turbo
Lightning) or mouse drivers do not support the extended-keyboard and
therefore will not function under PROCOMM PLUS.
A workaround for this problem is to make PROCOMM PLUS think you
have a regular keyboard rather than an extended one by changing a single
bit in the BIOS data area. This is exactly what REGULAR.COM does. Once
you run REGULAR.COM (by typing REGULAR at the DOS prompt before going
into PROCOMM PLUS) you will not be able to use your F11 and F12 keys,
but you will probably be able to use your TSR or mouse driver unless it
conflicts in some other way. After leaving PROCOMM PLUS you can run
EXTENDED.COM to enable your extended keyboard functions again. Perhaps
the best way to use these programs is in a batch file, e.g.:
REGULAR
PCPLUS
EXTENDED
NOTE:
After forcing PROCOMM PLUS to think you have regular keyboard, there
is no way to distinguish the extended keyboard's special keys. This
means, for example, that the grey keys will act the same as their
regular keyboard counterparts and that F11 & F12 will be unavailable.