I'm pretty much on ronaldg's side on this, though I recognize the concern expressed by Jefki for future releases of Windows - but then I worry about that for every program I use. For me one of the pluses of OCD is the ability to modify the display by creating and editing the dax files, though I recognize that not everyone is interested in doing that - but OCD is more user modifiable than most programs - even for non-programmers - through the preferences. In particular, I have been able to designed quite different displays for classical music and for jazz.

I still use programs that haven't been modified in a decade or more (though without DOSBox, Windows 7 would have done in some of them).

There are still a few glitches in OCD - primarily in displays - but I have trouble identifying anything really substantive that needs attention.