Hi, I have to follow-up myself on LZ-DOS:

> google translate of http://dos.nm.ru/ is only a kernel, freeware
> provided as-is by JSC. Can be used with the userspace tools and
> drivers of other DOS variants and generally sounds interesting.

...

> You mean LZ DOS is an improved rip of the MS DOS 7 kernel? Or
> is it just another DOS kernel which provides DOS 7.x compat?
> I would like to hear from other users what their experiences
> with LZ DOS are...

Unfortunately it is not improved at all: Somebody just took a
few components of MS DOS 7 and PC DOS 7 and REBRANDED and then
recompressed them. Not worth mentioning IMHO because everybody
who likes to ignore licenses can just as well download a grey
copy of the real MS DOS 7 or PC DOS 7 somewhere anyway.



Forum http://reboot.pro/topic/14520-lz-dos/ says, excerpted:

The file dates on LZ-DOS is 11/9/2003, which is identical to the build
date on pc-dos 7.10.0129 ...

we see a very close match between the two, to the point where the bulk
of the file is a light string hack (gsar -s"PC DOS" -r"LZ-DOS" -o
command.com), does most of the work.

you will indeed discover that the bulk of the differences between 1.29
command.com and lz-dos command.com lies entirely in PC DOS -> LZ-DOS,
and a few copyright strings. There is a single change of byte elsewhere
in the file (05 -> 06 or something).

... and only 4 CODE byte changes might offer any improvements ...

LZ's io.sys was compressed with apack.com.

See also: http://reboot.pro/topic/5497-ms-dos-71/ on how to
mix various commercial DOS variants into something useful to
those who are not looking at licenses.



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