Star is part of a command to delete any file matching a wildcard `C-00000291*.sys` meaning "starts with 'C-00000291', has any kind of text after that and ends with '.sys'". Actual files appear to differ for every machine
Only a couple of years later did I understand that it was simply a shorthand for talking about Windows 95 and Windows 98.
Edit: And looking now at Wikipedia apparently it also covers Windows Me. (The Millennium Edition that came between Windows 98 and Windows XP.) https://en.wikipedia.org/wiki/Windows_9x