Unattended without license key (Dell OS CDs)

[Frapple]

Firstly, great guide, I can see it making part of my job a lot easier and faster for both em and the workforce.

So I managed to make a unattended installation (except the Windows security rubbish & press OK to accept resolution) thanks to the guide.

If I don't have CD-Keys due to dell CDs bypassing them, what am I suppose to do? Used the CD-Image Tool to create the ISO.

Any quick solution? Thanks.