[placebo]

And here are my tests with Zune 4.7, and with indvpage:

WMP10final: 10.0.0.3802

WMP10final with exchanged wvc 11.0.5358.4827 => Zune 4.7 doesnt bitch => IBX 11.0.6001.8015

Conclusion of this post:

With a full installation of WMP11 (WMP11beta1, WMP11beta2, WMP11beta3, WMP11final), Zune 4.7 will generate IBX 11.0.6001.8015
With a full installation of WMP11 (WMP11beta1, WMP11beta2, WMP11beta3, WMP11final), you can downgrade wvc to 10.x or even 9.x, and Zune 4.7 will still not bitch. Again, IBX 11.0.6001.8015 is generated


Interesting is that Zune 4.7 does not bitch. I've checked with indvpage; the Upgrade button is available and turns to "Upgrade Complete" with an additional popup "Message from webpage: Windows Media Player is not installed properly. Reinstall the Player. < OK >".