If it worked on people's Windows 7 computers, then people can probably still use it in 100 years (potential issues with network services required by the software aside). I can run a Windows 7 VM today, and given that I can also run an emulator for any marginally popular 40 year old game console I expect people in 100 years will have an x64 emulator that can run Windows 7. Not the most convinient thing, but lots of people enjoy games that way, so why not study the Torah that way