MIDI file loads in multimedia player, but it doesn't start the playback. No sound and seeker doesn't move.
Firstly I assumed that the default PC speaker MIDI driver doesn't work, so I installed a custom software MIDI driver (BASSMIDI), which successfully added to the MIDI output list. But it didn't solve the problem even after reboot.
Also I tried to use my own MIDI player application, but it doesn't work too – the behaviour is the same.
Link to BASSMIDI driver: