For troubleshooting have you tried just copying that character to the lpt port?
You may need to disable the lpt1 from NT to avoid any type of print-job conversion.
I have been running into similar problems with my FOXDOS app, so I'll be interested to see how you resolve this.
I try to stay online, to get better information.
I try to get away from the office once in a while..
But they KEEP... PULLING.. ME.. BACK.. IN!!!