A win8 app can be nothing more than a bunch of html/css/js files etc. So what executes them? The answer , a process called wwahost.exe, also known as the App Host. The App Host is basically IE10 minus all the chrome, with a few big differences,
- There are some additional methods and CSS media queries specific to Win8 apps to support Win8 view states.
- IFRAMEs however are allowed, but they cannot use WinRT or cross-domain XHR. WinJS is however available, so you can use all the UI Glitz.