System IO Isolatedstorage C# by API

using System;
using System.IO;
using System.IO.IsolatedStorage;
static class MainClass
{
    static void Main()
    {
        using (IsolatedStorageFile store = IsolatedStorageFile.GetUserStoreForAssembly())
        {
            store.CreateDirectory("MyFolder");
            Console.WriteLine("Current size: " + store.CurrentSize.ToString());
            Console.WriteLine("Scope: " + store.Scope.ToString());
        }
    }
}