NX-D moved away from the "U-Point" Color Control Point technology. It uses a more traditional editor interface (similar to Lightroom) combined with specific Nikon Picture Controls.
If you cannot find your product key, or if the software simply won't run on your new computer, the good news is that Nikon offers a successor: Capture NX-D . capture nx2 product key
However, installing legacy software on a modern machine comes with headaches. If you are trying to get Capture NX2 up and running, here is a guide on how to retrieve your key, the hurdles you might face during activation, and what your options are if the key is lost forever. NX-D moved away from the "U-Point" Color Control