[MSDN Library April 2000] MIDM_UNPREPARE (100%)
MSDN Library - April 2000 > DDK Documentation > Windows NT 4.0 DDK > Multimedia Drivers > Audio Device Drivers > Audio Driver Reference > Messages, User-Mode Audio Drivers
[MSDN Library April 2000] MIDM_UNPREPARE (60.4242424242424%)
MSDN Library - April 2000 > DDK Documentation > Windows 95 DDK > Windows 95 Documentation > Design Guide > Multimedia Device Drivers > Audio Device Drivers > Messages
[MSDN Library September 1992] MIDM_UNPREPARE (43.6535206933689%)
Product Documentation > Windows 3.1 DDK > Multimedia Device Adaptation Guide > Chapter 2 Audio Device Drivers > Audio Device Driver Message Reference