问个序列化的问题

用NuSOAP写的SOAP,C#调用时返回了也下的序列化字符串，我用什么可以解成标准的XML？
a:1:{i:0;a:16:{s:9:"requestID";s:3:"210";s:6:"userID";s:1:"8";s:6:"deptID";s:1:"1";s:5:"aspID";s:1:"1";s:16:"from_screen_name";s:18:"<o1211532136>ssdfd";s:9:"sessionID";s:10:"1211532141";s:8:"surveyID";s:1:"0";s:7:"created";s:10:"1211532136";s:6:"status";s:1:"0";s:7:"tstatus";s:1:"0";s:10:"ip_address";s:12:"149.10.10.98";s:12:"browser_type";s:50:"Mozilla/4.0 (compatible; MSIE 7.0; Windows NT 5.2)";s:18:"display_resolution";s:10:"1024 x 768";s:12:"visitor_time";s:22:"5/23/2008 4:41:58 P.M.";s:3:"url";s:29:"http://149.10.10.151/test.php";s:8:"question";s:3:"aaa";}}