Key: (download)
An email is sent to you with an attachment. (See red oblong)

Simply click on attacment to download.
(Tip if you save this email to a folder you create [name it something like 'Registrations'] You will have the details of the transaction + the Key kept safe. You can see in the above screen shot this to be the case.)
The next window should look like below. Simply click the Save button.

Choose where to save key.
(Tip save the the same folder as the program. i.e. Slysoft/AnyDVD)

On completion of download click the Close button.