@dimesio I have created the script: #!/bin/sh gimp `winepath -u "$*"` and given the following commands: utente@utente-desktop:~$ sudo cp /home/utente/gimpcall /bin utente@utente-desktop:~$ sudo chmod a+x /bin/gimpcall With DVDSubEdit 'Preferences' I have chosen the toolpath: Z:\bin\gimpcall Then I have created bmp.reg: [HKEY_CLASSES_ROOT\.bmp] @="BMPfile" "Content Type"="application/bmp" [HKEY_CLASSES_ROOT\BMPfile\Shell\Open\command] @="/bin/sh gimpcall gimp \"%1\"" and given the command: utente@utente-desktop:~$ regedit $HOME/bmp.reg If I select 'Edit subpic bitmap with external tool' Gimp is launched and I keep on getting: Opening of "/home/utente/.wine/dosdevices/c:/users/utente/Temp/tempbitmap.bmp" has failed: Cannot open '/home/utente/.wine/dosdevices/c:/users/utente/Temp/tempbitmap.bmp' in read mode: non existing file or directory I wish to thank you all. Best regards, Paolo