Apple Software Update new version (ASUP) is an Apple program used to download the most up-to-date versions of their software products and updates them automatically, first made available for Mac users with OS 9 and then on Windows with iTunes 7. Since iTunes 7, users of all kinds have had access to both OSes – for both Macs and pcs alike! Originally introduced as part of the Mac OS 9 installation process but more recently as an independent package in iTunes 7. Assuming you already installed iTunes before reading on, As an alternative method you could download ASUP from the link below then unpack it using 7-Zip then double click AppleSoftwareUpdate.msi file which will install independently – to do this manually just download the iTunes setup file then extract using 7-Zip then use 7-Zip before double-clicking its file name AppleSoftwareUpdate.msi file to complete installation!