Getting back to the original topic, real mode dos and a dos box in win 95 and later are two very different things. Real mode dos is basically a 16 bit 8086 compatability os and a dos box is a 32 bit protected mode emulation of a 16 os. The trouble is that Bill Gates dosn't believe in protected mode superuser status for users and that means that a dos box cannot properly access hardware directly. Old dos 6.22 era games in particular tended to directly manipulate hardware in order to boost performance. Sound cards have real problems in a dos box.
