Console.ReadLine() not working with .net Framework > 3.5

I checked what was in the Environment.NewLine using this code :

namespace ConsoleApplication1
{
    class Program
    {
        static void Main(string[] args)
        {
            char[] textCharArray = Environment.NewLine.ToCharArray();
            foreach (char c in textCharArray)
            {
                Console.WriteLine((int)c);
            }
        }
    }
}

and it outputs \r\n with both .net Framework 3.5 and 4.5, so no difference here.