Hello FreeDOS user list people.
I used the latest version of Defrag, v0.4x
I used FreeDOS defrag on my C: drive (full optimization), then used PC DOS 6.3 Defrag, and it was already defragged. That's one real world example of the use of FreeDOS defrag. It worked excellent on my C: drive.
My C: drive: a slightly less than 128 MB FAT16 drive; a system boot drive with Kernel 2035-16.
Anyway, there you have it.