The close anti-trust supervision of Microsoft that was imposed as part of the company’s 2002 settlement of a landmark legal case mounted by the US should be extended for two years longer than originally intended, a Federal judge ruled on Tuesday.

Judge Colleen Kollar-Kotelly also issued a stinging rebuke of the software giant, accusing it of being responsible for an “inexecusable delay” that had “impeded the final judgments from accomplishing their intended result and achieving their principle objects.”