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"Ours has a lot more innovation and was a better way of using Java," he said. According to information on Microsoft's Web site, the Microsoft JVM includes the Microsoft COM (Component Object Model), which lets Java programmers take advantage of some Windows features and allows quicker download of Java applications, among other things.
Current Windows operating systems ship with Microsoft's JVM integrated, and they will continue to include it. Users who upgrade to XP from an earlier version of Windows will be able to keep the Microsoft JVM that came with their old OS, Kasiviswanathan said.
(Matt Berger in San Francisco contributed to this report.)