Sometimes I get *.rmi files that are Microsoft specific midi files. Only Windows Players support this format. I prefer using dos players and the builtin player of a music workstation and they cannot load RMI. When I studied the content of an

Dos 下的声卡音量控制程序,以内存驻留键盘激活的方式控制CD-Audio,MIDI,Voice以及Master的音量-Dos under the sound volume control procedures, the presence of memory to activate the keyboard to control CD-Audio, MIDI, and the Master's Voice volume

MPU-401 midi DOS driver C Source Code

MIDI player for sound bluster ,C source for DOS