Hi there.. please help! This is very urgent!

I am developing an application which is pretty much a replacement of a hyperterminal. I am trying to send commands to the serial port using MSComm in VB6.0

When I type in on the hyperterminal h003128 I get a response OK. Or when I type in i003 it displays back some values.

What I am trying to figure out how do I send the h003128 via VB6. I believe I've undertood how to send data to the port. It seems I am not getting the correct formate. Please help.

This wont work.. the formate iAAADDD where i = i AAA = 003 and DDD = 128
MSComm1.Output "i003128"

Any idea? Thanks much.