I am only looking for one as there will only be one USB to Serial Adapter in use at any one time.

1.The USB to Serial adapter will be connected to the laptop.
2.The Laptop (Windows) will assign a COM port to the Serial adapter.

What the Application needs to do is find which COM port has been assigned to the adapter. So if COM1 has been assigned to the belikin adapter is should show "Belkin Adapter has been attached to COM1".