Harry Potter author J.K. Rowling has won her long-running battle with a fan who planned to publish an unauthorised guide to her wizard franchise.

Rowling began legal proceedings against writer Steve Vander Ark and publisher Rdr Books last year (07) after learning of their plans to release The Harry Potter Lexicon.

On Monday (Sep08) New York district court Judge Robert Patterson ruled in Rowling's favour and banned the encyclopedia-style project's release.

Patterson told the court that Rdr "failed to establish an affirmative defence of fair use". (c) WENN