Case T-201/04: Judgment of the Court of First Instance (Grand Chamber) of 17 September 2007 — Microsoft v Commission (Competition — Abuse of dominant position — Client PC operating systems — Work group server operating systems — Streaming media players — Decision finding infringements of Article 82 EC — Refusal of the dominant undertaking to supply and authorise the use of interoperability information — Supply by the dominant undertaking of its client PC operating system conditional on the simultaneous acquisition of its media player — Remedies — Appointment of an independent monitoring trustee — Fine — Determination of the amount — Proportionality)