The AW37 (AW37Pro) WDM MPU-401 Compatible Windows Driver is a driver designed to make your computer compatible with the AW37 or AW37Pro audio or MIDI interface hardware that supports the MPU-401 standard. The MPU-401 is a standard interface for MIDI (Musical Instrument Digital Interface) communication, and WDM (Windows Driver Model) is a driver architecture developed by Microsoft to provide compatibility with Windows operating systems.

This driver allows your computer to properly interact with MIDI devices, often used in music production, by supporting features such as sound output and input, recording, and MIDI communication.