Lost Product Key

[PhailRaptor]

Bought this game a long time ago.  I have now purchased a new computer, and used the old install on the new computer.  But I have no idea what my product key was.  What are my options?  Is there somewhere in the files on the old computer I can look it up?  Can I receive a new key?

[Karsten75]

On the very same page you posted your question is a pinned topic that reads:

Computer Crashed? Lost Original Install File? Here is Your Solution. :)

Try reading the instructions in that, since even though your computer hasn't crashed, you still have lost the product key.