Does it have comms built in?
I don't know

I did find these headings though:

How to: Show Available Serial Ports in Visual Basic
Demonstrates how to show available serial ports.

How to: Dial Modems Attached to Serial Ports in Visual Basic
Demonstrates how to dial a modem attached to the serial port of a computer.

How to: Send Strings to Serial Ports in Visual Basic
Demonstrates how to send a string to a computer's serial port.

How to: Receive Strings From Serial Ports in Visual Basic
Demonstrates how to receive a string from a computer's serial port.