DOS ain't dead

roytam 09.03.2026, 15:51	Yet another DR DOS (Announce) Post reply
	Just saw this in SvarDOS forum: https://old.reddit.com/r/DOS/comments/1rnfw4e/ive_been_quietly_rebuilding_dr_dos_from_scratch/

Guti

11.03.2026, 13:02

@ roytam

Yet another DR DOS

Post reply

Sounds quite interesting!
Thanks.

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Visit my personal blog at https://www.javiergutierrezchamorro.com

Laaca

Czech republic,
11.03.2026, 17:12

@ Guti

Yet another DR DOS

Post reply

> Sounds quite interesting!
> Thanks.

No FAT32 support...
Only very basic support for BAT file language...
So far unusable.

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DOS-u-akbar!

RayeR

CZ,
11.03.2026, 18:39

@ Laaca

Yet another DR DOS

Post reply

> No FAT32 support...
> Only very basic support for BAT file language...
> So far unusable.

It seems it's only for license gaming not for real use :)

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DOS gives me freedom to unlimited HW access.

usotsuki

14.03.2026, 09:49

@ RayeR

Yet another DR DOS

Post reply

> > No FAT32 support...
> > Only very basic support for BAT file language...
> > So far unusable.
>
> It seems it's only for license gaming not for real use :)

I think it would be more worthwhile to try to reconstruct the functionality of MS-DOS 5 and 6 on the 4.01 base, honestly...

Which I've been trying to do but that's not really in my wheelhouse. I'd be open to integrating improvements in my fork :-D

Man, if someone could pump Microsoft for 6.21 the way that one guy did for 4, I have a specific list of things I want to do with MS-DOS. (My fork does contain an improved ATTRIB as well as a rewrite of 6.0's CHOICE. But that's only a couple things.)

ecm

Düsseldorf, Germany,
14.03.2026, 10:03

@ usotsuki

lDOS kernel

Post reply

> > > No FAT32 support...
> > > Only very basic support for BAT file language...
> > > So far unusable.
> >
> > It seems it's only for license gaming not for real use :)
>
> I think it would be more worthwhile to try to reconstruct the functionality
> of MS-DOS 5 and 6 on the 4.01 base, honestly...
>
> Which I've been trying to do but that's not really in my wheelhouse. I'd
> be open to integrating improvements in my fork :-D
>
> Man, if someone could pump Microsoft for 6.21 the way that one guy did for
> 4, I have a specific list of things I want to do with MS-DOS. (My fork
> does contain an improved ATTRIB as well as a rewrite of 6.0's CHOICE. But
> that's only a couple things.)

My project, the lDOS kernel, re-implements most kernel features of MS-DOS v5 (HMA, UMA use) and some of v7.00 (LBA, HMCB chain, LFN awareness). Not included are boot menues for config.sys and support for DriveSpace/DoubleSpace.

FAT32 also isn't supported at all yet. Further, the shell and most other utilities are barely updated. The exception is MSDebug which is actually based on the 2018 MS-DOS v2.xx release and recreates most features of later MS-DOS Debug.

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l

ecm

Düsseldorf, Germany,
11.03.2026, 20:30

@ Laaca

Yet another DR DOS

Post reply

> > Sounds quite interesting!
> > Thanks.
>
> No FAT32 support...
> Only very basic support for BAT file language...
> So far unusable.

Even better, only FAT16 support. FAT12 is not supported either!

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l

roytam 13.03.2026, 17:19 (edited by roytam, 13.03.2026, 17:31) @ ecm	Yet another DR DOS Post reply
	> > > Sounds quite interesting! > > > Thanks. > > > > No FAT32 support... > > Only very basic support for BAT file language... > > So far unusable. > > Even better, only FAT16 support. FAT12 is not supported either! and not all cluster sizes are supported, > 8KB cluster size seems to be unsupported at the moment.

nico7550 03.04.2026, 09:58 @ ecm	Yet another DR DOS Post reply
	> > > Sounds quite interesting! > > > Thanks. > > > > No FAT32 support... > > Only very basic support for BAT file language... > > So far unusable. > > Even better, only FAT16 support. FAT12 is not supported either! new buid say it support FAT12 but no bootsector to test

Yet another DR DOS (Announce)

Yet another DR DOS

Yet another DR DOS

Yet another DR DOS

Yet another DR DOS

lDOS kernel

Yet another DR DOS

Yet another DR DOS

Yet another DR DOS