Oh! Someone gave me this disk back when I was in an Atari user group. It didn't come with my Basic XE cartridge, so I never got instructions on how to use it. Ah well, now I know it's useless with the Atari800Win emulator.
Unfortunate. I would love to run these sweet BasicXE programs I wrote on the emulator. I just can't find the BasicXE ROMs anywhere.