@evildictaitor:It's not like we have more than 5 types of UART chips to support. Microsoft can handle this part pretty easily if she wants. And it's generic driver so usual argument about "Every version of Windows has had problems when old devices don't have compatible device drivers" does not apply.

I think Microsoft may want to drop serial port access to favour migration to newer USB standard, while neglecting many device in the world still needs it.