Setting up modems leads to "to install a new modem" and "to change the COM port."

This can be achieved by using a virtual COM port.

Serial port (COM port) - At one time the most popular method.

As of 2007, most systems ship with one or no physical COM ports.

I.e. a solution that makes the application think it is talking directly to a COM port.

Jot down commands and then send them through COM port or over the network.

Advantages: Good range; connects through any available COM port.

With this switch, the COM port can be used for normal operations while Windows is running.

Unlike the switch, uses the COM port whether you use debugging or not.

- Specifies the COM port to use for the debug port.