>Unfortuantely the commands sent and received are hex values which I do not believe can be typed from the keyboard. It is interesting though that Hyperterminal allows a baud rate of 230400 but MSCOMM does not.

Hrm... interesting... Never noticed differences in the baud rate lists until now (actually, to tell you the truth, I'd never used the MSCOMM control as I was using API calls to do serial communications ).

Baud rates listed for MSCOMM:
110
300
600
1200
2400
9600
14400
19200
28800
38400
56000
128000
256000

Baud rates listed in HyperTerm
110
300
1200
2400
4800
9600
19200
38400
57600
115200
230400
460800
921600