public static extern bool InternetCrackUrl( // Ref: http://msdn.microsoft.com/en-us/library/aa384376(VS.85).aspx

Declare Function InternetCrackUrl Lib "wininet.dll" (ByVal lpszUrl As String, ByVal dwUrlLength As Integer, ByVal dwFlags As Integer, ByRef lpUrlComponents As URL_COMPONENTS) As <MarshalAs(UnmanagedType.Bool)> Boolean