Most likely reason is that an error occurred in the server. Use tcpmon, Wireshark, or a similar tool to trace communication between client and server, or inspect the servers log files. Jochen On Tue, Oct 13, 2009 at 1:16 PM, cse102736 wrote: > >   bool x =Convert.ToBoolean(proxy.loginAuthentication("a","a")); > > whenever i try to call the method of loginAuthentication as shown in above > code, I recieve the exception error: > > "Response from the server does not contain valid XML " > -- > View this message in context: http://www.nabble.com/error-message-tp25871011p25871011.html > Sent from the Apache Xml-RPC - User mailing list archive at Nabble.com. > > -- Germanys national anthem is the most boring in the world - how telling!