Ok i was answering questions at http://www.dotnetjunkies.com forums. Someguy had this question. so here is the answer…
Ping in .NET using C# or VB.NET? In other words, how can you find is some host (may be web site) is alive?
how to ping some machine
Abi Bellamkonda: Impossible + space + ' = I'm possible 
hi abi,
the code that u provide is not completed(for article-how to ping some machine). Can you mail me the source.Tq.my email-nott7e@yahoo.co.uk–>