I have several clients that are still using computers that run Windows 98 (not even second edition!). They’re small businesses that don’t have a lot of cash to spend on implementing new technologies, plus the machines are running so great they don’t want to change a thing. These machines run legacy software and will probably be in service until the day they die.
One problem with the Windows 98 machines is the lack of USB support. I would love to backup these machines to an external USB drive, but haven’t been able to since the computers wouldn’t acknowledge their built in USB ports.