/// <summary>
/// Establishes a connection to the host.
/// </summary>
/// <exception cref="ArgumentNullException">If Host is null or empty.</exception>
public void Open()
{
if (String.IsNullOrEmpty(_host))
{
throw new ArgumentNullException("Host");
}
_hInternet = WININET.InternetOpen(
System.Environment.UserName,
WININET.INTERNET_OPEN_TYPE_PRECONFIG,
null,
null,
WININET.INTERNET_FLAG_SYNC);
if (_hInternet == IntPtr.Zero)
{
Error();
}
}
