Cordoba file plugin applicationDirectory equivalent for Windows 8 application

Question

I use the Cordova and File plugin to display content in the resource directory on www.

On iOS, I get a file entry by passing the cordova.file.applicationDirectory file to window.resolveLocalFileSystemURL and everything works as expected.

var url = cordova.file.applicationDirectory + '/www/assets/';

window.resolveLocalFileSystemURL(
    url, 
    onSuccess, 
    onFail
);

When I switch to the Windows application environment, cordova.file.applicationDirectory is undefined. I tried using Windows.ApplicationModel.Package.Current.InstalledLocation or Windows.Storage.ApplicationData.current.localFolder with no luck.

What is the correct way to resolve the local file system url for windows?