If you have one of the older versions, the executable to launch is one folder lower than where you expect it. Go to where you copied the files and then go to the "DATA" subdirectory and launch PMCLASS from there. If you launch it from the parent subdirectory, it doesn't work.

Hope this helps.


John

Laptop-HP Omen I7 Win11Pro 32GB 8TB SSD
Desktop-ASUS-I7 Win10Pro 32GB 11TB SATA

BB2026/UMC204HD&404HD/Casios/Cakewalk/Reaper/Studio One/Notion/Dorico/Noteworthy/NI/Halion/IK

http://www.sus4chord.com (under rehosting and construction)