Is there a way to make Vista recognize MIDI files?

Is there a way to make Vista recognize MIDI files?

I recently spent a couple of weekends trying to get a Vista machine to recognize MIDI files. I spent time looking for workarounds or third-party programs to resolve this, but nothing I tried worked. Not only will Vista not recognize MIDI files, but third-party programs that will normally play MIDI files (Winamp, for example) won't play them on a Vista machine.