Q&A: Rendering Mode for Web Browser Controls (WebOCs)
Q: Eric, you mentioned that the IE8 Web Browser Control, hosted in Forms / WPF, runs in IE7 emulation mode by default. Is there a way to turn the emulation mode off and have the control work in "real" IE8 mode?
A: Yes. This is controlled by a feature control key. See Matt Crowley's post on Rendering Mode for WebOCs over on the IEBlog.