The main thing Microsoft has never quite grasped is interoperability. Which is understandable, because (a) it's hard, and (b) it reduces potential sales by prov

The main thing Microsoft has never quite grasped is interoperability. Which is understandable, because (a) it's hard, and (b) it reduces potential sales by providing a level playing field. Traditionally, Microsoft has opted for vendor lock-in; Microsoft tools work best with other Microsoft tools, and poorly or not at all with competitors. This strategy does tend to keep customers in the fold, and provide more short term revenue. However, in the long term a lack of competition causes stagnation, both in the product and the market; and when a competitor does arrive, Microsoft suddenly finds itself woefully unprepared to fight back. Most open source software, on the other hand, exists in a world of broad interoperability and heavy competition. Is it any wonder that certain open source products are beginning to nip at Microsoft's heels? Microsoft is still the 400lb gorilla of the software world, but one that's overweight with a heart condition.