JazzMammal,
Perhaps you misunderstood my statement "...Windows for MIDI processing (meaning midi-mapper or in/out).". You are referring to the OS, while I am referring to modules within the OS. Applications, drivers, and other modules are dependent on the Operating System/environment, to be sure, but one (or an application) doesn't have to use an included vendor's app or module (e.g., Microsoft midi-mapper). And, having worked in the trenches developing software and systems with Microsoft and several other much larger platforms for more years than I'd care to admit (and before Microsoft existed), I have a pretty decent understanding of the subject. As to whose applications, drivers, configurations, etc., I say whatever works for someone provokes no argument. However, my emphasis was with John's "MIDI is dying" statement, that I happen to disagree with, and so does the Music industry. So does PGMusic, else they wouldn't still seek input for new MIDI features.
Richard