There's no Windows setup on latest installation CD!

I downloaded several times the latest installation CD image, WDNASOnobarding_MBL_1_4_5_6.iso, published 4/18/2011.

Curiously, there’s no Windows installation on this CD image! Just Mac apps and manuals.

What the hey?

Just downloaded it…  It’s working for me?

Autorun.inf is there, and points to SETUP.EXE which is right in the root…