I'm not sure I understand your point.
I have to install the software COM port in order to use it in Arduino IDE and to have a COM port available. I'm trying to communicate with it with C# (Visual Studio 2010) in a Windows Environment (with Parallel Desktop Virtualization - So Windows runs in a virtual environment). Usually, I don't have a problem with COM project. This one (Arduino) cause me to receive bad data. So I don't know how to receive directly from the COM port. It works well with the serial monitor that connect on that port.
So I wish I could have more precise instructions / directions or be able to construct a proof of concept - Which I'm not able at the moment.
I hope my point is clear enough. I welcome any help provided.