For those of us old enough to remember the glory days of Infocom, this comes as wonderful news. I really look forward to revisiting the game and seeing if I still remember how to win (probably not). As an aside, I'm pretty sure I still have a copy of the game for the Commodore 64 somewhere in my basement.
Sounds like you are looking for Scandisk. Open up my computer, right click the Local Disk, and choose properties. Click Tools, and there you will find both the Scandisk Error Checking, and the Disk Defragmenter.