On Tue, Mar 6, 2018 at 5:53 PM, Jonas neuer <jonas.ne.mail@gmail.com> wrote:

The thing is, on Windows I can't figure out how to tell any application to route its audio through Jack. For example in Audacity on the Pi I can select JACK instead of ALSA and all the Jack connections show up. On Windows I can only select MME, Windows Direct Sound and WASAPI (also tried installing ASIO, but that doesn't show up either.)

JACK wasn't ever designed for general purpose audio. On Windows, it presents itself as a "fake" or "pseudo" ASIO device. Most consumer applications do not use ASIO and so they will not see it. If you run a DAW or other music creation/pro-audio software on the Windows machine, they would makes ASIO devices available.