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Chapter 2. Getting Your Hardware and Sof... > Preparing Your Software for Windows ...

Preparing Your Software for Windows XP

In preparation for upgrading to, or installing Windows XP fresh, you need to consider software compatibility issues. Chapter 1, “Introducing Windows XP Home Edition,” described how Windows XP is largely backward compatible with DOS, Windows 3.x, Windows 9x, and Windows 2000 applications. Windows 2000's support for older programs, was, well, not so great. In fact, during the development of Windows 2000, application compatibility (especially for consumer end-users) was almost an afterthought. The focus for Windows 2000 was the corporate user. As a result, numerous consumer-oriented applications, such as games, failed to run on Windows 2000, leaving many power users and home consumers in the lurch.

Windows XP focuses much more on consumers. To ensure expanded software compatibility, Microsoft set up an Application Compatibility Experience group shortly after the XP project began in December 1999. This group consisted of more than 200 testers, developers, and program managers who tested applications in a variety of scenarios (clean installs, migrations, upgrades) using various hardware configurations.


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