 Additional utility, called RUNEXT, allows to associate data types with programs to be invoked automatically, when the user enters the name of the data file at the DOS prompt and hits the Return key.A program called MENU facilitates complex file management tasks and can serve as a replacement shell.Other utilities allow to change disk names, search disks for files, undelete them, install keyboard buffer, edit system files (CONFIG.SYS and AUTOEXEC.BAT) and so on.