Windows 10: gs wavetable no midi sound

I'm using a program called Notation Composer and the sound on this was fine on Windows 7 playing midi sheet music. Now I have no midi sound. I've checked the setting in the software and all is OK as is a midi file when I play it stand alone. Any ideas anyone?

:)

 

I can't find Microsoft GS Wavetable Synth.

Hello? I can't find Microsoft GS Wavetable Synth from midi port list.





Therefore, I only use MIDI Yoke port to play midi.

How can I restore Microsoft GS Wavetable Synth?

 

Attempts to open MIDI Mapper or GS Wavetable Synth fail in Windows 10

In executing my Music composition program in Windows 10, the program indicates that NO MIDI output device is assigned. OK. I will assign one. I am offered either of two choices, both worked in my Windows 8.1 Pro 64 bit system. These are: MIDI Mapper or Microsoft
GS Wavetable Synth. In either case I get the following error:

Error 1003003 opening: MIDI Mapper.

OR

Error 1003003 opening: Microsoft GS Wavetable Synth.

MIDI Output Device: Microsoft GS Wavetable Synth - not found.

Oddly enough, after selecting either, getting the error message yet continuing, the program works just fine. Sound is produced!

Unfortunately, I still have to go through the same process of selecting the MIDI Output device every time I execute the program.

This is very annoying (and I consider it a Windows 10 "bug", particularly since in Windows 8.1 the program worked perfectly). Suggestions? Comments? Solutions? Please! (FYI: Program is Jammer 6 Pro. I plan to try Band-In-the-Box next.).