From Empire Foundation:
Empire is a free and open source browser programmed in Visual Basic. Available in English, French and Spanish, and with support for Mandarin and Romanian coming soon, it is the best and most lightweight browser for both casual and intensive web surfing. Powered by the Trident 3.1 layout engine, it is simple and very efficient. Empire Browser is lightweight and easy to use, without any of the confusing menus and dialogs found in mainstream browsers. This browser is perfect for the average user and offers several unique advanced capabilities that are fun and helpful.