I must have a corrupted version because it doesnt have an install file, thanks for the help anyway

hi been trying to work Conquest of the New World deluxe from a cd using dosbox 0.72. Ive got it to load and the combat demo works but when I try to load a game or scenario it crashes back to e: error 10: failed loading game info. On status window it says e:\e2.dbg exists failed to open in write mode …