Microsoft Agent has been discontinued with the release of Windows 7. Therefore, programs which ran on Windows Vista, Windows XP, etc, and which required Microsoft Agent will not run on Windows 7 or Windows 8.
Microsoft Agent is a technology that provides a foundation for more natural ways for people to communicate with their computers. It is a set of software services that enable developers to incorporate interactive animated characters into their applications and Web pages. These characters can speak, via a text-to-speech engine or recorded audio, and even accept spoken voice commands.
Some examples of the Microsoft Agent characters are the Office Assistants. The characters included Clippy, the paper clip, The Dot, a shape-shifting and color-shifting smiley-faced red ball, Hoverbot, a robot, and The Genius , a caricature of Albert Einstein. The characters would interact with users by offering help with tasks currently being performed.
However, Microsoft Agent is deprecated as of Windows 7, and may be unavailable in subsequent versions of Windows too!
Consequently, all programs which required the Microsoft Agent to run, will not be able to run in Windows 7.
When you try to run such programs in Windows 7, you may receive an error that is associated with Microsoft Agent and the program may crash.
For instance, when you use Microsoft Office XP, Office 2003, and you press F1 to open the Office Assistant, you receive the following message:
The Office Assistant requires Microsoft Agent 2.0 or later versions. This product is available in the Office System Pack.
But if you do need to run such programs in you Windows 7, you can download Microsoft Agent as a hotfix for your Windows 7 computer, and then easily continue to run such programs.