I had to upgrade to 22 as I could no longer use the previous version.
I installed the drivers in the usual way and when the control panel runs, I plug in, say, my 1066 servo controller, and it sees it - when I try to double click on it to manipulate the servo I get an error "open failed because device in use" - which it isn't.
I uninstalled the driver version, installed the standalone version, and got exactly same problem.