You can install
Windows Internet Explorer 8.
See: "
Internet Explorer 8: Help and
support - System requirements".
Internet Explorer 8:
Support
"...
IE9 has security (e.g. protected mode) and graphics (e.g. DirectX) functionality that requires
other components not available on Windows XP, an operating system that first shipped in 2001 with IE6. Because of the decision to not support Windows XP, the issue of IE9 not installing on it is “By design...”
Cf.: "
IE9 Release Globally Available for Consumers and Businesses".
You can't install IE9 in Windows XP. Read:
"
How do I install or uninstall Internet Explorer 9?"
-> "
Internet Explorer 9 system requirements".
Regards,
Vincenzo Di Russo
Microsoft® MVP Windows Internet Explorer, Windows & Security Expert -
since 2003.
Moderator in the Microsoft Answers and TechNet Forums
My MVP Profile:
https://mvp.support.microsoft.com/profile/Vincenzo