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Compiling Windows on DOS? (Developers)

posted by Zyzzle, 13.02.2021, 02:23

> > Why on earth would you want to recompile Windows 2003?
>
> Because some people still (want/need/like)use older Windows for whatever
> reason and they want to do some specific modifications to improve/bugfix
> it. One example is ACPI.SYS driver has problem running on newer MBs with
> new ACPI (no legal way to run old Win on such systems) so some people
> modified it to make it working - by binary hack and later by recompiling
> from sources, so God bless the leakers :)
That is *exactly* the point! To fix Microsoft's bugs, short-sightedness, etc, to *improve* that longevity and usability of these so-called "obsolete" operating systems, extending to the range of modern systems.

I wonder if the same hacks and / or recompilings could make Windows XP installable and usable "out-of-the-box" on new systems (well, 2015 on up). I know the ACPI.sys bugs and lacks of AHCI support for XP always results in a 0x7d or 0x7f error on installation on every post- ~2008 system I've tried to install it on. The beauty of XP is that it takes > 2GB of disk space, and would boot in about 3 seconds flat on modern SSD systems. And you'd still have a real DOS subsystem and compatibility with older 32-bit software!

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