Thanks for the answer,
I tried that:
First, I uninstalled the Phoebus program, the Dolby Home Teather v4 program, all the audio drivers, even Nvidia High Def drivers.
Then, I restarted, the Card was found and was put Windows High Def Audio drivers.
Then, I reinstalled the Windows 7 driver shown in the previous post.
As a result:
I still don't have the interface I use to have (I hope someone see what I am searching for).
And the most problematic issue: the DHT is not doing anything if I turn it on (the colored bars are not moving at all if I play music).
If I go to the Windows Properties of my headset or speakers and click on the "Dolby" tab, I get the following error : Error creating ASL interface. Please verify that the ASL DLL is registered.
Any hint?