The full transparent effect was also possible in the builds 6956, 7022, 7048 and 7068
In the builds 7000, 7077 and 7100 it doesn't work.
You also can use this function in the build 7100 (RC), when you copy the two files "DWM.exe" and "uDWM.dll" from folder c:\windows\system32\ of Build 7127 into the Build 7100.
Whereby the file "DWM.exe" is responsible for the evaluation of the registry key ("HideBlur=1") and the file "uDWM.dll" for full transparency.
In order to overwrite these files at all, you first must acquire the full access rights at these files. Then "stop the service": "Desktop Windows Manager Session Manager" for a short time and copy the files from build 7127 into 7100. After that "restart the service": "Desktop...