For whatever it's worth and for whoever is interested I put the source for the Windoze control program on github.
If anyone rebuilds it using tools from this century I've be interested in hearing about it!.
I'm currently controlling my Xcat? from Windows 7 using an USB serial port.?
It worked the first time!? ?This is the first time I've tried the Xcat with anything more recent than XP.
73's Skip WB6YMH
