Microsoft’s Ray Ozzie made explicit at the latest Microsoft investor and analyst meeting the relation between standard software and web services in Microsoft’s business and product strategy. 
See for instance
This obviously sound approach is being clearly proposed ever since June 2005. Then, the first Vista demo showed a web service allowing a realtor to analyse property data displayed on satellte photos. Interestingly, Microsoft is now providing such a service.
The question this raises is: how will Microsoft partner with other enterprises – customers, partners and competitors, in this space?
The current approach is exemplified by SPLA licensing, where Microsoft asks partners to pay a premium for the opportunity of leveraging Microsoft’s platform for their "software as a service" offering.
How representative of Microsoft’s future web services partnering approach will this be?