Link: IE 8 Release Candidate 1

"Internet Explorer 8 has been designed from the ground up to be enterprise-ready.  It helps reduce security risk through features such as a cross-site scripting filter, the SmartScreen® Filter, and safer controls and management of the Microsoft® ActiveX® technologies, platform, controls, scripting, and server framework. And when you download the latest RC1 software, you're automatically registered to access valuable RC1 resources assembled in one convenient location.

Evaluate Windows Internet Explorer 8 RC1 today"