SystemDoubleParse.cs

// .NET v4.6.1073.0 for x64 target on Windows 10
using System;

namespace NET_double_parse
{
    class Program
    {
        static void Main(string[] args)
        {
            Console.WriteLine("{0:G1}", System.Double.Parse("2.4703282292062325e-324")); // 0       - correct
            Console.WriteLine("{0:G1}", System.Double.Parse("2.4703282292062326e-324")); // 5E-324  - should be 0 !!!
            Console.WriteLine("{0:G1}", System.Double.Parse("2.4703282292062327e-324")); // 5E-324  - should be 0 !!!
            Console.WriteLine("{0:G1}", System.Double.Parse("2.4703282292062328e-324")); // 5E-324  - correct
            Console.ReadKey();
        }
    }
}