https://bugs.winehq.org/show_bug.cgi?id=52568
--- Comment #3 from Ralf Habacker ralf.habacker@freenet.de --- (In reply to Ralf Habacker from comment #2)
There are plans to add unix socket support to DBus for Windows (see https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/249#note_1267962) and the related CI system uses wine to run the cross compiled DBus test suite.
After https://gitlab.freedesktop.org/dbus/dbus/-/merge_requests/249 was integrated into dbus master, support for Unix domain sockets on Windows has recently become available in dbus, but cannot be tested with wine yet.