1)install powerdvd
2)copy keygen in folder where you installed powerdvd
2)run keygen as admin (I am running win 7)
3)click on serial button (copy this serial #)
4)click on activation button
5)click on patch button then exit
6)run powerdvd. You should be presented with a window to enter serial #. Enter the serial number you got from step 3. Done