Color Efex 4
I have each of Nik Software versions. I downloaded each version, and then copied the receipt and registration information into Microsoft Word. Once I have all of that done, I burn all of that information onto 2 DVDs, that way I have an extra copy just in case I lose one. I also write the name of the software along with the registration information onto the front of the DVD. I do this with each software that I have to purchase and download from the internet.