Old Product, New Computer

I have this old headset of the Kraken Pros and to get the 7.1 Surround sound on my new computer it is requesting an activation code. The headset works great and am not looking to replace them but I have long forgotten or lost the old code. Is there any way to get the activation code on the new system or am I just S.O.L. on this one and need a new headset? Thanks for the help.