What is “reduced functionality mode” in Office XP and Office XP family products?
Programs go into reduced functionality mode if the user does not activate before the end of the grace period, which is the fiftieth use for Office XP and its family products and the tenth use for Visio 2002. In this mode, users cannot save changes to documents or create new documents, and additional functionality may be reduced. Existing files are not affected and can be edited or saved with an activated installation of Office XP or Visio 2002. Users can regain full functionality of the product by activating.