Blizzard Entertainment has won a summary judgement against the BnetD project, in a landmark ruling that invokes the controversial US Digital Millennium Copyright Act (DMCA).

The project had reverse engineered Blizzard's software to build servers that emulate Blizzard's system for hardened WarCraft gamers to engage in multiplayer games online.

Judge Charles Shaw ruled that BnetD had violated Blizzard's end user agreements and terms and conditions.

The judge also saidthat because the BnetD servers created a functional alternative to and were used to bypass Blizzard’s anti-piracy technology, the actions constituted a circumvention of copyright under the DMCA.

"We consider this ruling to be a major victory against software piracy," saidMike Morhaime, president and co-founder of Blizzard Entertainment: "By ruling in our favour on every count, the court is sending a clear message that creating unauthourized servers which emulate Blizzard’s servers is without question illegal.

"We have worked hard to provide gamers with a free, safe, secure, reliable, environment on, and this ruling is a strong validation that we are justified in protecting and ensuring the integrity of our game service."