title: How to "ping" a domain name?
body: <p>In Code i want to validate a domain name.</p>
  
  <p>For example : " DomainName.com". </p>
  
  <p>How can i do that in C#.</p>
  
  <p>I worked on <a href="http://msdn.microsoft.com/en-us/library/system.net.networkinformation.ping.aspx" rel="nofollow noreferrer">MSDN</a> Solution. (Second Solution).</p>
  
  <p>But <strong>"PingCompletedCallback" is not getting executed.</strong></p>
  
  <p>Thanx</p>