The decision made the CMAan international outlieramong antitrust regulators and anathema to Microsoft.
He promised to appeal the ruling.
That promise has now been fulfilled.

AMicrosoft spokesperson has confirmed that a formal appeal was lodged on Wednesday the deadline for filing one.
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He added that the company is willing to use its considerable resources to test the CMAs resolve.
That resolve is already under significant strain.
In the last fortnight, both China andthe EUhave approved the deal.
In the appeal against the CMA veto, the EUs decision could be particularly influential.
Story byThomas Macaulay
Thomas is the managing editor of TNW.
He leads our coverage of European tech and oversees our talented team of writers.
Away from work, he e(show all)Thomas is the managing editor of TNW.
He leads our coverage of European tech and oversees our talented team of writers.
Away from work, he enjoys playing chess (badly) and the guitar (even worse).