CitectSCADAv7.20 also supports the Microsoft Windows 7 and Microsoft Server 2008 R2 operating systems. The changes to CitectSCADA undertaken in the 7.1 release to support Windows Vista significantly reduced the changes that were necessary to support Windows 7 and Server 2008 R2. Previous Vista users will experience no functional differences in CitectSCADAwhen migrating to Windows 7. However if you migrate to Windows 7 from Widows XP be aware of the functional differences with CitectSCADAbetween XP and Vista, as described in New Locations for Configuration and Project Files.