Portable Start Menu is a Free Portable application that can be used to organize all of your portable applications for quick launch via a start tray icon. It works much like the Start Button in Windows with the exception that the Portable Start Menu is only used for launching the preinstalled portable applications from your USB device.
Portable Start Menus
Portable Start Menus or Portable Launchers for USB drives.
RocketDock is a Free Program Launcher that can be stored and run from a Portable Device. The Portable Start Menu or Portable Application Launcher resembles a Mac OSX Dock and can be used to launch programs via the shortcuts you create by simply dragging and dropping application executables onto RocketDock.