I've got a client that was using a POS system designed in FM5. The printer would open the register whenever "A" was sent to the printer in the control (an internal font related to the printer) font. When I updated to FM11, I learned that non-True type fonts aren't supported anymore. Contacted the printer company, and if I send a hexidecimal command to the printer, the register drawer will still trigger.

Any help on how to send a hex command tho? Sorry if this is a newbie question.

You could run a DOS batch file to echo the code to COM1: or LPT1: as appropriate, or use 360Works ScriptMaster to write the code to the port. e.g. echo > com1: @ -- may need mode command to set COM baud rate, parity, etc.