Using a Neosmart Win 7 CD 64-Bit but blocked by Sony Password

#1
I was using a Neo Smart Boot CD today on a Sony Vaio 64-Bit CD for Win 7 ...it began to load
as normal but then I was blocked by a dialog box that wanted a password.

Username was given as Sony - ( you could not change this, either)
and the box underneath this as blank ( where you hand to put in a password)

This is obviously a manufacturer password and I have no idea what it is?

Any ideas welcome...