If you've misplaced you've misplaced your license key, follow this link to recover it.
If you never received it by email after your purchase, or the lost license key recovery system did not send anything to your email address, please submit a ticket so that we can look you up. We want you to have the audio you deserve ASAP!
Now that FxSound is free and we've moved to a donation model we've had to discontinue active customer support, but you can get help from the community at the new FxSound Forum.