Bob, it's a free program. As far as I know, there is no activations.
What operating system are you working on? Since those disks were pressed which came with the D4's Nikon has apparently updated the program and now has 64bit versions, if you're using a 64bit operating system. Regardless, download the latest version. Uninstall the program. Restart your computer. Then install the downloaded program and see what happens. Let us know if that cures it.