CBSMarketwatch: "Office sales could provide a significant boost to Microsoft's revenue when combined
with the new software licensing rules Microsoft is foisting on customers. Starting October 1, the world's largest software
maker will end the practice of selling software upgrades to business customers -- the least expensive and most popular way
companies buy Microsoft software.
Instead, Microsoft is offering either a subscription to its software, or a pricing scheme the company calls "software
assurance", in which customers must buy a three-year license to all the official software changes the company makes to one of
its software brands."