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SHELLFIX.DOC
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1987-10-31
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2KB
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42 lines
How to patch your SHELL.SYS to free up icons 4 and 8
Icons 4 and 8 in any SHELL.SYS have certain pre-defined functions
associated with them. With a little bit of judicious hacking,
these icons can be freed up to make them more easily useable when
they are redefined using a program such as ICON.COM.
How to do it
First lets tackle icon 8 as this is more straightforward. Open up
your SHELL.SYS with a debugging program such as z8e, and search
through it for a byte sequence:
C8
FE 59
C9
FE 38
CA xx xx <--- these three bytes are to be changed to
nops.
Now icon 4. Search for a byte sequence:
Shells with 10 icons Shells with 9 icons
D1 E1
F1 F1
FE 08 FE 06
C2 xx xx C2 xx xx
^ ^
| change to C3 | change to C3
That's all there is to it! Now icons 4 and 8 function just like
any other icons in the SHELL!
Of course, if you want to do this much more conveniently, get in
touch with me thru the post at 33 Downing St, Epping NSW 2121 or phone
(02) 868 3597 and for a small fee (say $20) I will provide you with
ICON.COM version 1.4 (which adds this function plus some more goodies)
Kalvis Duckmanton
N.COM version 1.4 (which adds this function