[Kevin Fort]

To confirm the registry key you just need to open the registry editor on your windows machine and browse to the key (on windows 7 you can get to the registry editor by searching for a program called regedit)

LabVIEW has a dependency on the .NET framework 4.0 and this is the point in the install where that dependency is checked and the error we get if it is not installed. I am going to check with our installer team on other reasons you might get that error even if that registry key is set.