First you login to
www.bsplayer.com site with the username and password provided in the licence e-mail.
Then you download new version of BS.Player PRO, by clicking on the button '
UPGRADE' if you want to upgrade your old BS.Player PRO or '
GET BS.PLAYER PRO' if you are new user.
After that, you start BS.Player PRO and right click in main window and select '
About'. When you are in About window press 'R' to display registration window.
Here you enter
second username and password that was provided in the same e-mail, and it looks something like this:
Registered User Name: John Doe
Registration code(s): XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX