When using an older MIDI 1.0 application, you will see duplicate endpoints for MIDI 1.0 devices. This will be the case until the new version of AudioEndpointBuilder is in the version of Windows you use.
For example, here are the ports from MidiSrv (I for Input, the 1 is the group number)
Documenting here so it's a known issue.
When using an older MIDI 1.0 application, you will see duplicate endpoints for MIDI 1.0 devices. This will be the case until the new version of AudioEndpointBuilder is in the version of Windows you use.
For example, here are the ports from MidiSrv (I for Input, the 1 is the group number)
And here are the classic WinMM inputs