I used MIDITrail on Windows 8, but the error did not occur.
I think MIDITrail may have an unnecessary check.
So I have fixed the MIDITrail to skip the error message.
Please download following file and try it out.
http://miditrail.sourceforge.jp/release/MIDITrail-Ver.1.2.0-F69135-Windows.zip
http://miditrail.sourceforge.jp/release/MIDITrail-Ver.1.2.0-F69135-Windows_src.zip
Reply to #69140