You plan to upgrade your computer to Windows 7. Which tool should you use to find out whether your current applications will run on Windows 7?

The Application Compatibility Toolkit (ACT) is a set of tools and documentation from Microsoft that helps IT professionals identify and mitigate application compatibility issues for new versions of Windows, such as Windows 7. It allows users to test applications and create compatibility fixes for those that fail.

Windows Anytime Upgrade allowed users to upgrade to a higher edition of Windows 7 (e.g., Home Premium to Ultimate) without reinstalling, but it did not assess application compatibility.

Windows Update delivers operating system patches and fixes, but it does not evaluate application compatibility for an operating system upgrade.

A Windows Service Pack is a collection of updates, fixes, and sometimes enhanced functionality delivered in a single installable package, it is not a tool for assessing application compatibility prior to an upgrade.