How to run DOS games in Batocera or Recalbox 4.1

You can run fullscreen DOS games in Batocera or Recalbox (4.1 or newer).
You need copy them like this:

1. Select /recalbox/share/roms/dos/
2. Create a folder with the name of the game adding ".pc" (like  galaxia.pc)
3. Copy all the files of the game to this folder.
4. Create a dosbox.bat file, these file must content the fullname of the executable file (like GALAXIA.EXE).
5. Update games in recalbox/batocera menu.

We need repeat steps 1 to 4 for each game we add, and do the step 5 when we finished.

Note: Don't use notepad for Windows because this buggy software can add strange and invisible characters. Better use a good text edit like jEdit.