3 ms·
Short of driver troubles at the jump from Win 9x to 2k/XP, and the shedding of Win16 compatibility layers at the time of release of Win XP x64, backwards compat
by xattt 2y ago
Short of driver troubles at the jump from Win 9x to 2k/XP, and the shedding of Win16 compatibility layers at the time of release of Win XP x64, backwards compatibility had always been baked into Windows. I don’t know if there was any loss of compatibility during the MS-DOS days either.
It’s just expected at this point.
- anthk 2y agoOn DOS, if you borrow ReactOS' NTVDM under XP/2003 and Maybe Vista/7 under 32 bit (IDK about 64 bit binaries), you can run DOS games in a much better way than Windows' counterpart.
- rasz 2y agoAfaik due to POPF not trapping Reactos implemented NTVDM as a software emulator. https://web.archive.org/web/20170723164052/http://community.reactos.org/index.php/news/years-progress-ntvdm-part-1 https://web.archive.org/web/20170723164052/http://community.... https://web.archive.org/web/20151216085857/http://community.reactos.org/index.php/news/years-progress-ntvdm-part-2 https://web.archive.org/web/20151216085857/http://community.... At this point you might as well use DOSBOX. Intel Protected Mode POPF fail: https://docs.oracle.com/en/virtualization/virtualbox/6.0/admin/swvirt-details.html https://docs.oracle.com/en/virtualization/virtualbox/6.0/adm... https://devblogs.microsoft.com/oldnewthing/20160411-00/?p=93281 https://devblogs.microsoft.com/oldnewthing/20160411-00/?p=93...
- anthk 2y agoI think they recently improved NTVDM a lot.