DOGA-L2 and L3 are shareware.
The registration fee of L2 is $20 and of L3 is $40.
(If you are a registered user of L2, you can upgrade to
L3 with $20.)
The feature "Render / View animations" is
not available till you register.
You can register by visiting http://order.kagi.com/?QWF.
When you pay the fee at Kagi (Reliable registration service), you
will receive the key information (User Name, User ID, and Password)
in a few hours.
In order to unlock the limitation, click "Register" button on the
main menu and input the key information. Please use "copy
and paste" function to input the key information.
If you have any trouble, please send an e-mail to 
Software
Individual
Registration