Compatibility Technologies

This section describes the compatibility technologies that are available for planning and mitigating application compatibility.

Migration Technologies

One of the key areas in which compatibility comes in to play is in an upgrade scenario. Users are running some version of Windows 98, Windows NT, or Windows 2000; and have multiple applications installed. In an upgrade, if Windows XP–Setup knows about the installed application and what needs to be done to allow the application to continue to run after the upgrade, Windows XP Setup can correctly handle the upgrade. The end result is an application that continues to run correctly after the upgrade.

During the development of Windows 2000, Microsoft developed the concept of a ...

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