Program.cs

class Program
{
    static void Main(string[] args)
    {
        InnerScope();

        GC.Collect();
        GC.WaitForPendingFinalizers();


        Console.WriteLine("Done");
        Console.ReadLine();

        // use the following code to explicitly stop the cleaner thread
        //LargeObject.DisposeCleaner();
        // the code is working without this call because the ticking thread
        // is a background thread and won't stop the CLR to exit the process
    }

    static void InnerScope()
    {
        var largeObject = new LargeObject();

        // it is also possible to support explicit disposing
        // var largeObject2 = new LargeObject();
        // largeObject2.Dispose();

        GC.Collect();
        GC.WaitForPendingFinalizers();

        GC.KeepAlive(largeObject);
    }
}