Hello, it might also be interesting that your script works under Ubuntu 20.04 and wine. I wrote a
small shell script for this. I just have to run each .mps manually in Tiny Hexer but it works.

rm -rf $HOME/.wine/drive_c/DMICOPY/*
CHOOSE_FILE=$(zenity --file-selection --title "Zu bearbeitende File wählen!" --multiple --filename "$HOME/Downloads/" 2> /dev/null)
FILE_NAME=$(basename ${CHOOSE_FILE})
cp -uv $CHOOSE_FILE $HOME/.wine/drive_c/DMICOPY/locked.bin
wine $HOME/Dokumente/Tiny-Hexer/Tiny\ Hexer/mpth.exe > /dev/null 2>&1
zenity --info --title "WICHTIG" --text="\nBitte nur die File ** locked.bin ** kopieren!" --width=600 --height=100 2> /dev/null
UNLOCK=$(zenity --file-selection --title "Zu kopierende File wählen! = locked.bin" --multiple --filename "$HOME/.wine/drive_c/DMICOPY/" 2> /dev/null)
cp -uv $UNLOCK ${CHOOSE_FILE%.*}_unlocked.bin