Hi, Veldmous.
It sounds like you'd like to be able to install a control to be used in an ActiveX container. Although extra controls will appear in that list once they're registered in your system, I'm not aware of some sort of generic serial control that can be installed.
However, there's a whole series of Bluetooth-related VIs that will probably be much easier to use than controlling your devices through ActiveX. For an example using these VIs, check out the Example Finder. (Help>>Find Examples, then select Networking>>Bluetooth.)
Good luck! Let me know if you have any more questions.
Sarah K.
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