Today i read about a new Namespace in Whidbey.

This stuff is very useful. You can subscribe to notifications when network connectivity changes, obtain information about tcp/ip connections (like netstat) and more…

The System.Net.NetworkInformation namespace provides access to network traffic data, network address information, and notification of address changes for the local computer. The namespace also contains classes that implement the Ping utility. You can use Ping and related classes to check whether a computer is reachable across the network.