This builder creates a bootable ISO image with a Grub4DOS boot loader. Grub4DOS boots based on settings in a file called menu.lst. Usually this builder program will create menu.lst for you based on your options. However, by setting "Try Local Hard Drive" to "Custom Menu.lst" the builder will not create menu.lst. Instead, it copies in the menu.lst from iso_root. In this way users may gain more control over the boot process.

See Apendix C in the documentation included with this program for more information on customizing menu.lst.