Multimedia File I/O Messages

The following messages are used with multimedia file I/O.

MMIOM_CLOSEXY8MNC
MMIOM_OPEN4FIOPBE
MMIOM_READC_5H31
MMIOM_RENAMEG3WX17
MMIOM_SEEKC_6H78
MMIOM_WRITE.92H83
MMIOM_WRITEFLUSH73.INS