It is WindowBlinds5 beta.
I have been using every function I can think of in my programs trying to "break" WB5 beta to verify stability and compatibility with all the programs I use.
I have also done a lot of installing of some other programs, such as the free Visual Studio programs from MS, as well as some Stardock programs (ObjectBar, Right Click, etc.) to look at them for potential mini tutorials.
All of this leads to quite a few clean installs of the OS to remove possible bad data in testing, and to truly clean the registry.
As I understand it, WB Activation is an anti-piracy measure, which makes sense to me - although I am now in a position of having to use Luna. I guess it is not so bad, but would prefer to use WB5 beta.