C# 调用动态链接库，给游览器写入Cookie

样例代码：

class Program {
        /// <summary>
        /// 写
        /// </summary>
        /// <param name="lpszUrlName"></param>
        /// <param name="lbszCookieName"></param>
        /// <param name="lpszCookieData"></param>
        /// <returns></returns>
        [DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern bool InternetSetCookie ( string lpszUrlName, string lbszCookieName, string lpszCookieData );
        /// <summary>
        /// 读
        /// </summary>
        /// <param name="lpszUrlName"></param>
        /// <param name="lbszCookieName"></param>
        /// <param name="lpszCookieData"></param>
        /// <param name="lpdwSize"></param>
        /// <returns></returns>
        [DllImport("wininet.dll", CharSet = CharSet.Auto, SetLastError = true)]
        public static extern bool InternetGetCookie ( string lpszUrlName, string lbszCookieName, StringBuilder lpszCookieData, ref int lpdwSize );
        /// <summary>
        /// 异常
        /// </summary>
        /// <returns></returns>
        [DllImport("kernel32.dll")]
        public static extern Int32 GetLastError ();
        static void Main ( string[] args ) {
            System.Diagnostics.Process.Start("IEXPLORE.EXE", "http://172.16.5.63:8088/ws?uname=122");
            System.Threading.Thread.Sleep(1000 * 10);
            //System.Diagnostics.Process.Start("http://172.16.5.63:8088/ws?uname=122");
            if ( !InternetSetCookie("http://172.16.5.63:8088", "Test", DateTime.Now + ";expires=Sun,22-Feb-2099 00:00:00 GMT") )
            {
                Console.WriteLine("错误消息:", GetLastError().ToString());
            }
            StringBuilder cookie = new StringBuilder(new String(' ', 2048));
            int datasize = cookie.Length;
            if ( !InternetGetCookie("http://172.16.5.63:8088", "Test", cookie, ref datasize) )
            {
                Console.WriteLine(GetLastError().ToString());
            }
            Console.WriteLine(cookie.ToString(), datasize);
            Console.ReadLine();
        }
    }