Jam, Stacker on Zoomer

Bryan D.K. Biggers (n9gbj@pgd.adp.wisc.edu)
Fri, 27 Jan 95 01:20 PST

I've tried 2 disk compression packages on the zoomer, and I thought that I
would share what I've learned and maybe pick up some pointers from the
group. I'm trying to compress my 2MB SRAM card.

First , "Jam". This is a shareware package, and looked promising.
I tried version 1.20. I was able to create the container file without
trouble, but the JMOUNT program traps out with a msg from the
zoomer (something to the effect of...)
BIOS DOS unsupported call int 24H code 1220.
Apparently an unsupported DOS call. If anyone else tries this, save
yourself some grief and a cold zoomer restart (What a Pain!) by NOT
putting JMOUNT in your CONFIG.SYS file as shown in the JAM documentation
(you can still run it from the command line if you want to experiment).

Second, Stacker. I still have my 3.0 version of the general release,
so I tried that. I've upgraded twice from 1.0, and am reluctant to
upgrade again unless 4.0 works better. (I'm not talking about the
version of stacker which is provided with some PCMCIA cards, that
appears to be a custom version that works, these versions seem to
use a "stacker.drv" file as the driver; someone please correct
me if this is not so.)

I used STACPALM to create the container file on C:, and added
STACKER.COM to the CONFIG.SYS. Stacker seemed to work, but with 2
problems...

1) a phantom E: drive that constantly plagued me with "drive not
formatted" errors from the zoomer every time it polled the drives. I had
the phantom E problem with stacker 3.0 on my old ZEOS pocket PC, but it
did not usually cause a problem. I was not able to get rid of the E:
drive with SSWAP.

2) Whenever I would use file manager to copy a file from the B: drive,
the zoomer would lock up with the hour glass on the screen. I could do
other operations on the stacked drive like creating folders and saving
files from applications.

Because of 2) above I quit using stacker, but I'd sure like to hear
from anyone that is using the commercial version with the zoomer,
especially 4.0. I did not try the "create container file on host
machine and transfer it over to the palmtop" method that Stac shows in
their tech notes.

Thanks, happy zooming, Bryan

reply to: bryan@pgd.adp.wisc.edu