[Eiriksmal]

Or Operation: Inner Space. It used the file system to generate sectors to visit to clear viruses from your EXEs, and collecting non-contaminated EXEs to use as currency.

It works great with Windows' backwards compatibility, but modern filesystems have so many thousands of directories the game is now impossible to complete.

http://www.sdispace.com/

[strictnein]

Thanks! Really enjoyed this game, but couldn't remember the name.

[mastersummoner]

Went looking for this comment. Loved this game as a kid.

[bee_rider]

I think I probably combined these programs in my head.