OmniBook 300/425 - Freeing up conventional memory

[Dave Britten]

(12-29-2016 07:52 PM)matthiaspaul Wrote:  If disk compression is important, you could try using Stacker 3.xx instead of DoubleSpace. Stacker can utilize DPMS (DOS Protected Mode Services), so it can relocate and run most of its resident code in extended memory, so there should be more free conventional and upper memory for other applications to work with.
Stacker 3.12 could be lifted from DR-DOS 7.02/7.03.

Greetings,

Matthias

In the OmniBook's days of 10 MB flash cards costing hundreds of dollars, compression was no doubt pretty important. Thankfully, you can find 256 MB compact flash cards in the sofa cushions at this point, so give me back that RAM and I/O performance!

I've had my 300 running with both DoubleSpace and Flash File System disabled since last night, and it's been working great. I threw DOSSHELL 5.0 on it and enabled the task swapper, which appears to use some combination of XMS and/or 386 virtual mode, so it'll run plenty of DOS programs simultaneously without needing to get Windows running in 386-enhanced mode.