yeah

I think the difference is opening and closing the device. I'm guessing that doing that tells NTVDM to go ahead and print. Even without the CHR$(12) I've got my doubts whether you'll be able to print just lines at a time. You might get forced into printing whole pages at once.

The "Hello" bit was just an test/example. You should be able to substitute your own strings.

Regards,
Michael