Microsoft’s attempts to kill off resellable perpetual software licenses infringe the EU constitution and UK competition law alike, according to the legal filings of a reseller suing Redmond for £270m in London’s High Court.

Microsoft Office used to be sold as perpetual licenses. The versions that work with Windows 10 include:

  • Office 97
  • Office 2000
  • Office XP
  • Office 2003
  • Office 2007
  • Office 2010
  • Office 2013
  • Office 2016
  • Office 2019

The studio has all versions of Microsoft Office perpetual licenses. At present only Office 2019 is installed.

The lawsuit is over the move by Microsoft to get everyone on the more costly subscription based Office 365. The cost is estimated to be more than double the cost of a perpetual license.

The EU legal basis of abuse of a dominant position is likely along with the competition act provisions. Most likely Microsoft will release a new perpetual office version before long.