Because it is a community-driven script, you will often find it bundled with larger multiboot toolkits:
Frequent writing of bootloaders to USB flash drives wears them out. With NTBoot7z, you keep your ISOs on an internal NVMe/SSD or external HDD, and boot directly. The drive experiences zero boot-sector writes. ntboot7z
To understand ntboot7z, you must first understand the limitations of standard booting. Traditionally, an operating system expects to see a specific boot sector (MBR or GPT), a bootmgr file, a BCD store, and a \Windows directory with registry hives. Because it is a community-driven script, you will