20+ App Bootable USB from an ISO file, Burn OS Windows/Linux (SIngleboot or Multiboot)

SingleBoot

Unetbootin (Free)

Universal USB Installer (UUI) (Free)

WinToBootic (Free)

Rufus (Free)

Microsoft Portable Workspace Creator (Free)

Windows USB/DVD Download Tool  (Free)

ISOtoUSB (Free)

Linux Live USB Creator (Free)

Passcape ISO Burner (Free)

Windows 7 SBB Tool  (Free)

UltraISO (Trial Version/Freemium)

MultiBoot

WinSetupFromUSB (Free)

Yumi (Your Universal Multiboot Installer) (Free)

XBoot (Free)

Grub4DOS (Grub Four DOS) (Free)

RMPrepUSB (Free)

MultiBootUSB (Free) http://multibootusb.org/

Easy2Boot (Free)

WinToFlash (Freemium)

SARDU (Freemium)

MultiSystem Live USB (Commercial)