What about midi problems in windows?

Game ports use DA-15 connectors (also incorrectly called DB-15), and usually double as connectors for MIDI instruments. To use a game port with MIDI instruments, one requires an unusual cable with a male and a female DA-15 and two male 5-pin DIN connectors. The drivers and hardware for the game port midi capabilities are based around the now standard Roland MPU-401 midi interface (in UART mode only), and support most MPU-401 standard applications for Windows and DOS. The official proper design for a gameport-MIDI adaptor can be found at this MIDI page.