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1979-12-31
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1KB
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61 lines
Using PKARC 2.0 with a DOS environment larger than 236 bytes may cause
PKARC to abort with an "Insufficient Memory" error. This problem
can be fixed as follows.
Using debug, change the byte at offset 417D hex in the file PKARC.COM,
version 2.0, dated 12-15-86. The value in the distribution copy is 8.
Changing this value will yield the results shown:
Byte at 417D Maximum environment size
------------ ------------------------
8 236 bytes
7 492 bytes
6 748 bytes
5 1004 bytes
4 1260 bytes
A value of 6 should be sufficient for most situations. Using a value
less than 4 may cause unpredictable program operation and is therefore
NOT recommended.
The following example session with debug will change the value to 6:
Enter
debug pkarc.com<CR>
where <CR> means the enter key. Debug will display a "-" prompt. Then enter
e417d<CR>.
Debug will display something like "xxxx:417d 08.". The xxxx value will
vary from computer to computer. Debug should display the number 08 as
above. If this value is not 08, then you do not have PKARC 2.0 and
should not continue. This patch is only necessary for PKARC 2.0.
Enter
6<CR>
followed by
w<CR>
and then
q<CR>.
The result should appear similar to:
A>debug pkarc.com
-e417d
xxxx:417d 08.6
-w
-q
A>
-Phil Katz 12/29/86
.