File Stream C#

using System;
using System.IO;
using System.IO.IsolatedStorage;
public class MainClass
{
    public static void Main()
    {
        IsolatedStorageFile isoStore = IsolatedStorageFile.GetStore(IsolatedStorageScope.User | IsolatedStorageScope.Domain | IsolatedStorageScope.Assembly, null, null);
        isoStore.CreateDirectory("TopLevelDirectory");
        isoStore.CreateDirectory("TopLevelDirectory/SecondLevel");
        isoStore.CreateDirectory("AnotherTopLevelDirectory/InsideDirectory");
        IsolatedStorageFileStream isoStream1 = new IsolatedStorageFileStream("InTheRoot.txt", FileMode.Create, isoStore);
        isoStream1.Close();
        IsolatedStorageFileStream isoStream2 = new IsolatedStorageFileStream("HereIAm.txt", FileMode.Create, isoStore);
        isoStream2.Close();
    }
}