NO need techstream activation/registration.Techstream Lite is an inexpensive alternative to the full TIS techstream system and provides factory level support for Toyota/Scion/Lexus vehicles. Techstream Lite allows Techstream diagnostic software to run on your PC (see minimum PC requirements) to service Toyota, Scion, and Lexus vehicles. The latest Toyota Techstream v12.10.019 software is verified to work 100% with MINI VCIcable, Xhorse MVCI, VXDIAG VCX NANO for Toyota OEM diagnostics tool, Toyota OTC2 OEM diagnostics tool.