It does work with GOG, though. On my XP computer, both Fallout 1 and Fallout 2 work just fine with sfall, and Fallout 2 works on my Vista laptop. It's just Fallout 1 on Vista that doesn't want to cooperate with Timeslip's ddraw.dll.
As far as I can tell, the GOG versions are just 1.2 with no...