You should have received an e-mail from BSPlayer team containing
(1) User name
(2) Registration code (a rather long alphanumeric string)
As it is easy to make typing errors with the code, I would suggest to use "Copy and Paste" method for that.
So open the e-mail, select the registration code and then rightclick > Copy
Remember the "User name" (which may be "case-sensitive", meaning that you must type in UPPER and lower-case characters as shown in the e-mail).
Now start BSPlayer Pro and rightclick on its control panel (skin); select "About" at the bottom and then press [R] on your keyboard
In the "Registration info"-window which now appears, type in your "User name", place mouse-pointer in the "Registration code"-box and then rightclick > Paste.
Click [OK]
In the "About" information under "Registered to" your "User name" should be shown now.
If that does not work, you should contact BSPlayer team.
Success!
