Before installing VSys Lite, enable it using VSys One. On the Setup panel, under System preferences and feature enabling, open the Feature enabling panel and check VSys Lite.
VSys Lite is installed by copying the
VSysLite.exe file into the same folder that already contains
VSys.ini - it does not require a separate installer. When you first start VSys Lite you'll be prompted to enter a company name and serial number; these values are unique to VSys Lite and not the same ones that you use for VSys One.
Now create one or more tool profiles which are valid for VSys Lite. That's it: you're ready to use VSys Lite.