.NET 4.5.2 & loading .dll

Why is Assembly.LoadFrom() static method removed ? and how do I load external .dll using Assembly.Load() instead ? This code throws exception.

        Assembly a = null;
        AssemblyName aName = new AssemblyName(@"C:\MyAsssembly\ClassLibrary1.dll");

        try
        {
            a = Assembly.Load(aName);
        }
        catch (Exception e)
        {
            Console.WriteLine("FileNotFound!");
        }

        Console.Read();
    }