Mmdevapi Jun 2026

Last Device Instance Id: SWD\MMDEVAPI{0.0.0.00000000}.{4C0FC340-0B29-453A-A2D5-3A7CE5337A7D} Class Guid: {c166523c-fe0c-4a94-a586- Microsoft Learn

These are software-defined device errors seen in Device Manager when the system cannot link the physical hardware to the MMDevAPI software layer. mmdevapi

: MMDevAPI handles the logic for which device is currently set as the "default" for playback or recording. Common Technical Contexts Last Device Instance Id: SWD\MMDEVAPI{0

Some of the key features of mmdevapi include: mmdevapi