Hi all, I plane to use vlite with a Windows Vista Upgrade version (I do not have purchased Vista yet). Will the installation steps be affected in any manner ? Does it require my Windows XP to be installed before using my vlite DVD version ? Will I be able to use this vlited version directly if I have to format/reinstall my PC later, without having to reinstall my XP before ? I searched this forum without finding any answer, and all requirements mentioned for vlite are 'a Vista DVD' as a source. Thanks for your answers. PS : nlite is excellent, I'm sure vlite is the same way....good work guys !