I do not use VB or .NET
In other languages when using on of these converters, it is treated as a serial port.
For example. One of my machines that does not have a serial port, only USB, add a hub and four serial to USB converters, device manager shows com 2 through 5. If I use hyperterminal, I pick one of these just as I would a real serial port. The same goes for Python and Liberty Basic (the two I use).
So I would guess in VB you would do the same because the OS sees these converters as a serial port.
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