This section contains articles that explain how Windows Internet Explorer can continue to add new features while remaining backward compatible with older websites and early version of the browser. These article also describe the Microsoft Application Compatibility Toolkit (ACT), which you can use to detect and troubleshoot compatibility issues.
The topics in this section help you understand, troubleshoot, and resolve compatibility issues that might appear in websites and HTML documents.
This document is designed to be a companion to the Microsoft Application Compatibility Toolkit (ACT) (which is part of the Internet Explorer Compatibility Test Tool). The Internet Explorer Compatibility Test Tool logs information about your browsing session in Internet Explorer.
Build date: 11/17/2013