Can you write a script to have Hyperterminal auto transfer data?

I’ve only used Hyperterminal a couple of times and then only to connect to a router or modem to check status or change settings.

If I have an input device connected via RS232 that sends data as if from a keyboard, can I write a script (either BAT or VB but preferably BAT) to have Hyperterminal capture and transmit this data to another program?

The device will be connected constantly, but data will only be sent once in a while.