The software installer ask for a login and password when installing. Why is this required ?
Some parts of the installation are now available as on-line content. You need to provide a valid iToo account run the package installer and get latest versions of the software components. For registered products make sure to use same login and account that you used to download the software, to get access to the paid content.
For Lite versions, you can create an new empty account, no registration is needed in these cases.