Drivers. The promise is that ReactOS will work with the Windows XP drivers for your ultra niche custom hardware for an industrial control system from an out of business supplier ( or point-of-sale system or whatever ).
ReactOS is still targeting 32 bit Windows at a time when even Linux is dropping support for 32 bit hardware.
ReactOS is still targeting 32 bit Windows at a time when even Linux is dropping support for 32 bit hardware.
ReactOS is FreeDOS whereas WINE is DosBox.