Using Console.WriteLine in a Timer why it would appear to exit?

Question

I have a console application,when I use Console.ReadLine(),the application will show "Hello World".why Console.ReadKey() can't?`

static void Main(string[] args)
{
     System.Timers.Timer timer = new System.Timers.Timer(1000);
     timer.Elapsed += timer_Elapsed;
     timer.Enabled = true;

     Console.ReadKey();// When use ReadLine() work fine;
}

static void timer_Elapsed(object sender, System.Timers.ElapsedEventArgs e)
{
     Console.WriteLine("Hello World");
}

Fixed:http://support.microsoft.com/kb/2805221

Answer 1

Console.ReadKey .NET 4.5 changes may deadlock your system

Console.ReadKey now locks a synchronization object which gets locked when you attempt to access stderr for the first time. Therefore, the solution is simple, we need to cause Console.Error to initialize before the call to Console.ReadKey.

update:An update is available for the .NET Framework 4.5 in Windows 7 SP1, Windows Server 2008 R2 SP1, Windows Server 2008 SP2, and Windows Vista SP2: May 2013