Browser version inside WMC is IE7 ?

[benchr]

I am working on a plugin for WMC on Win7 to integrate some favorite web sites within the WMC menus. When I navigate to a web page from within WMC - it is sending a user agent telling the world that it is IE7. This is true even though I have IE11 installed. Also, I noticed some things do not work like window.open

This is how I am navigating: Application.Current.MediaCenterEnvironment.NavigateToPage(PageId.ExtensibilityUrl, "http://useragentstring.com/");

Is WMC using this old browser engine, or is it just sending the wrong user agent string?
Is there a way to change the user agent string, or host another browser in WMC so that I can show a web page in the currently installed or default browser?

Thanks
Ben