All the investments in performance, navigation, service integration, security, and support for modern standards in Windows® Internet Explorer® 9 will help customers who are using the browser at home or at work. A more secure browser provides a more secure workplace. A more efficient browser enables a more productive workforce.

However, IT departments also have unique security, customization, deployment, and management needs for their desktop PCs. Internet Explorer 9 can be deployed as a standalone installation or slipstreamed into a Windows installation image, and Internet Explorer 9 has greater customization and management flexibility through group policies than other browsers.
Internet Explorer 9 Release Candidate - Product Guide for IT Professionals