Last year Munich released figures that it said demonstrated the project would save the authority more than €10m by sidestepping the need to license Windows 7 and newer versions of Microsoft Office, as well as associated hardware upgrades.
In total the LiMux project would cost €23m, compared to the €34m the authority estimated it would have cost to stick with Windows and MS Office.
Munich’s figures were challenged in a study produced by HP for Microsoft, which claimed the LiMux project would cost €60.6m, considerably more than claimed by the authority. In comparison, the report claimed, migrating to Windows XP and Microsoft Office would have cost only €17m.