Thanks to Anonymous2:

To verify the unlock key for Dimitry Sklyarov's AEBPR application create the following STRING VALUE in the registry:
HKEY_LOCAL_MACHINE\SOFTWARE\Elcom\Advanced eBook Processor\Registration\Code

and assign it the value of the registration key provided by Anonymous:

LEPR-T2K7-NA8Z-3DUE-EVDQS-TMPV-MBAUB

Start the AEPBR application and you will be all set.

Dmitry needs funds for legal defense. If you use AEBPR consider contributing to EFF or to Dmitry through PayPal, dmitry@shmoo.com