[racket] Problem around Creating Excutables

I successfully made a clone of old 70's BASIC game on Racket.
It's time to compile it and ready to rock 'n roll....
Racket's IDE successfully made an excutable, but...
Here is a problem.
I'm Japanese and I wish to have an executable to print Japanese on the
screen of DOS; however, the characters shown are .... yes, I saw some kind
of encoding problem.
Does anybody know how to tell Racket's compiler "I wanna see this in UTF-8"?

Thanx.
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