p.s. the issue only seems to concern the activeX mode. DoCommands (open=1) doesn't set auto-open.
Issue with the auto-open and auto-close command line parameter
It's a Laird BT900 dongle connecting to a BL652 module.
I need this to reset a virtual COM-port on a Bluetooth adapter (for unpairing a serial Bluetooth link), using an Excel-macro.
Serial break command line parameter