Legitimate portable software (like Audacity or 7-Zip ) is possible because the software is open-source or designed to be self-contained.
The protocol requires drivers to be installed at the system level. A "portable" app running from a USB stick cannot install kernel-level drivers on a locked-down computer (like a school or library PC) without admin privileges. cubase 5 portable free
Have you had a bad experience with "portable" audio software? Share your story in the comments (just kidding – we don't condone piracy here). Legitimate portable software (like Audacity or 7-Zip )