It can be run from a USB drive if a portable PHP environment is present.
"It’s a lifesaver," Rico said, cracking his knuckles. "It’s PHP. It runs server-side. It doesn't care about this café's throttled connection. It grabs the file from the host server to the VPS, and then gives it to you at the speed of light. Just launch the .exe and pray the script gods are happy." rapidleech v2 rev43 portable
Set up a if your portable version won't launch It can be run from a USB drive