Windows Vista Support for WDM Audio

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Windows Vista supports the following WDM audio capabilities:

  • WDM version 1.40

  • All the features that Windows XP supports, with the following exceptions.

    • Hardware peak meters are supported, except when the Windows Vista mixer API runs in per-application mode.
    • Wave and MIDI NT4 drivers function normally, but they are not supported by the new audio user interface.
    • AUX devices are not supported, and the auxGetNumDevs function in Mmsystem.h will always return a count of zero.
    • Windows NT4-style mixer drivers (DRIVERS32) are not supported.