Verify Internet connection is available using C#

private static bool IsConnectedtoInternet()
{
	bool IsConnectedtoInternet;
	try
	{
		using (WebClient client = new WebClient())
		{
			using (client.OpenRead("http://www.microsoft.com"))
			{
				IsConnectedtoInternet = true;
			}
		}
	}
	catch
	{
		IsConnectedtoInternet = false;
	}
	return IsConnectedtoInternet;
}

[DllImport("wininet.dll")]
private extern static bool InternetGetConnectedState
    (out int Description, int ReservedValue);
private static bool IsConnectedtoInternet()
{
    int description;
    return InternetGetConnectedState(out description, 0);
}