1696/7/7/24 Dr Maria Luisa Stasi v Microsoft Corporation, Microsoft Limited & Microsoft Ireland Operations Limited

Registered

Status

Application for a collective proceedings order arising out of Microsoft's allegedly unlawful licensing practices relating to the software known as "Windows Server" and cloud computing services. The application is made on behalf of a proposed class of UK domiciled organisations which obtained a licence to use Windows Server from listed providers, which it is alleged have been harmed by Microsoft's conduct. The claims it is proposed to combine in the collective proceedings are for damages resulting from Microsoft's alleged breaches of section 18 of the Act and/or Article 102 of the Treaty on the Functioning of the European Union.

A case management conference was listed on 10 June 2025 but was vacated by consent. The parties agreed directions to the CPO Hearing, which which was heard on 11 and 12 December 2025. Judgment was delivered on 21 April 2026, granting a collective proceedings order and certifying the claim.

On 20 May 2026, the Defendants applied for permission to appeal against the the CPO decision, which was refused at a hearing on 20 May 2026.The application has now been renewed before the Court of Appeal. 

The next CMC in this case has been listed to take place on 4 December 2026.

Events

  • CPO Hearing
  • Consequentials Hearing
  • Case Management Conference

Documents