Jerry:
Klaus has a big problem.
Because, there are three major generations of PCMCIA/PC Card
firmware/BIOS & socket service software; plus minor to major variations
from the slot-card hardware vendors themselves. Our experience is that
you can only use the slot-card hardware with the proper generation of
socket services with the proper generation of motherboard..
"Cardsoft" was supposed to cure the problem. However, they still had a
large stub (45K to 85K) in the lower 640K of the x86 memory model. Often
you could actually do better by converting to PC-DOS 7/2000 as you
suggested. But, when dealing with the card services part of PC-DOS
7/2000, it is really designed to take advantage of a 1996 or later
motherboard & BIOS.
Unless someone is a high-level hacker and likes writing their own device
drivers/card services, your SOL :(
Background:
We tried to make this work with a 486/50 MHz, circa 1994 motherboard.
After driving to the mfg. in Silicon Valley and sitting with their
"socket services" engineer, we decided our clients could buy new
hardware or live with the generational limitations of their 1993-1994
corporate buying decision.
This was no small decision on our part because there are over 3,000
installed mobile computers.
In theory we could have made money if we could have solved the problem.
Phoenix BIOS folks even had an engineer at that meeting, her comment was
basically "you don't have enough money to get there from here".
Long live legacy hardware/software. It will do most of what it was
designed to do when it was built. However, there are some genuine limits
as to how far you can push any legacy (mobile) platform.
John O
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