What can be added to the USB disk using WinSetupFromUSB: WinSetupFromUSB program was made later on to offer graphical interface, and program functionality was slowly extended to allow many other sources in a multiboot USB disk.
With the invaluable contribution of several forum members, it was the first method to have regular XP setup run from a USB disk, just like if started from a CD media. The install Windows from USB project started as a challenge back in 2006 at the forum. Since version 1.1 program can create USB disk with Windows versions which support (U)EFI (Vista 圆4 SP1 and later 圆4 versions), which USB disk can be used in both (U)EFI and Legacy BIOS modes. WinSetupFromUSB is a Windows program, which prepares multiboot USB flash or fixed disk to install any Windows versions since 2000/XP, boot various Linux and *BSD flavors, as well as many Windows, Linux, DOS based and other utilities.