Well, the short answer is that you should not create a copy. You’ve paid for a legit one, and trying to copy it means you’re trying to create another license to use. Go the legit way and buy another license.
The longer answer is that the dongle probably has a great deal of security built into it in order to circumvent copying. You can search some of the more illicit web sites in hopes of coming up with information to crack such measures, but you’re more likely to pick up an i-frame Trojan than get the answers you need.