Some features
Multi-Window Browsing, Built-in RSS/ATOM Reader, Additional Mouse Functions, Real Full screen mode, security options, privacy settings, Built-in AD/Pop-up Blocker and Flash Animation Filter (to block Flash ads), Safe Recovery (in case of crash, you can restart all the pages you were browsing). It has also an integratd google web page translator and it is skinnable.
It is really compatible with IE but it is more secure and friendly.
In the home page http://www.avantbrowser.com/index.html the authors declare:
Download page (actually quite poor...)Avant Browser is the fastest web browser on Earth. Its user-friendly interface brings a new level of clarity and efficiency to your browsing experience, and frequent upgrades have steadily improved its reliability. Now, Avant Browser is available in 41 languages.
http://www.enertechdbi.com/avant/
I think that it uses the local IE engine, but the settings are saved on the USB pen. It is useful for the ones who need IE but hate it!
Greetings!