I meet problem when I use .net to access my webservice

Hi,I meet a problem when I use .net(c#)to invoke my webservice based on java. What I want is that I have a xslt file on synapse server to transform response soap message from axis2 server. This problem is so strange.Because I can use java client to access my webservice and use xslt file to transform response soap message.But when I use .net to access my webservice, the axis2 server responses READ TIME OUT message to synapse. Could you please give me some useful suggestions? =======The following is my xslt file content============= <?xml version="1.0" encoding="ISO-8859-1"?> I was transformed ==============The following is error message================= 2009-06-15 14:00:44,343 [172.16.7.145-D750F4D41CD54A5] [http-Sender I/O dispatch er-1] WARN ClientHandler Remote server aborted request being sent and replied : [/192.168.124.1:8090] 2009-06-15 14:01:05,078 [172.16.7.145-D750F4D41CD54A5] [HttpClientWorker-1] ERRO R XSLTMediator Unable to perform XSLT transformation using : transform/transform .xslt against source XPath : s11:Body/child::*[position()=1] | s12:Body/child::* [position()=1] org.apache.axiom.om.OMException: com.ctc.wstx.exc.WstxUnexpectedCharException: U nexpected character 's' (code 115) in prolog; expected '<' at [row,col {unknown-source}]: [1,1] at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.jav a:249) at org.apache.axiom.om.impl.llom.OMDocumentImpl.getOMDocumentElement(OMD ocumentImpl.java:132) at org.apache.axiom.om.impl.builder.StAXOMBuilder.getDocumentElement(StA XOMBuilder.java:411) at org.apache.synapse.mediators.transform.XSLTMediator.performXSLT(XSLTM ediator.java:369) at org.apache.synapse.mediators.transform.XSLTMediator.mediate(XSLTMedia tor.java:178) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractLis tMediator.java:59) at org.apache.synapse.mediators.filters.OutMediator.mediate(OutMediator. java:60) at org.apache.synapse.mediators.AbstractListMediator.mediate(AbstractLis tMediator.java:59) at org.apache.synapse.mediators.base.SequenceMediator.mediate(SequenceMe diator.java:125) at org.apache.synapse.core.axis2.Axis2SynapseEnvironment.injectMessage(A xis2SynapseEnvironment.java:163) at org.apache.synapse.core.axis2.SynapseCallbackReceiver.handleMessage(S ynapseCallbackReceiver.java:333) at org.apache.synapse.core.axis2.SynapseCallbackReceiver.receive(Synapse CallbackReceiver.java:132) at org.apache.axis2.engine.AxisEngine.receive(AxisEngine.java:176) at org.apache.synapse.transport.nhttp.ClientWorker.run(ClientWorker.java :209) at org.apache.synapse.transport.base.threads.NativeWorkerPool$1.run(Nati veWorkerPool.java:58) at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExec utor.java:650) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor .java:675) at java.lang.Thread.run(Thread.java:595) Caused by: com.ctc.wstx.exc.WstxUnexpectedCharException: Unexpected character 's ' (code 115) in prolog; expected '<' at [row,col {unknown-source}]: [1,1] at com.ctc.wstx.sr.StreamScanner.throwUnexpectedChar(StreamScanner.java: 623) at com.ctc.wstx.sr.BasicStreamReader.nextFromProlog(BasicStreamReader.ja va:2047) at com.ctc.wstx.sr.BasicStreamReader.next(BasicStreamReader.java:1069) at org.apache.axiom.om.impl.builder.StAXOMBuilder.parserNext(StAXOMBuild er.java:506) at org.apache.axiom.om.impl.builder.StAXOMBuilder.next(StAXOMBuilder.jav a:161) ... 17 more 2009-06-15 14:01:05,203 [172.16.7.145-D750F4D41CD54A5] [HttpClientWorker-1] INF O LogMediator To: http://www.w3.org/2005/08/addressing/anonymous, WSAction: http ://www.w3.org/2005/08/addressing/soap/fault, SOAPAction: http://www.w3.org/2005/ 08/addressing/soap/fault, MessageID: urn:uuid:5768D3BBD2F5B3EC8B17776457166763-1 026143237, Direction: response, MESSAGE = Executing default 'fault' sequence, ER ROR_CODE = 0, ERROR_MESSAGE = Unable to perform XSLT transformation using : tran sform/transform.xslt against source XPath : s11:Body/child::*[position()=1] | s1 2:Body/child::*[position()=1], Envelope: <?xml version='1.0' encoding='utf-8'?>< soapenv:Envelope xmlns:soapenv="http://www.w3.org/2003/05/soap-envelope">http://www .w3.org/2005/08/addressing/soap/faultsoapenv:ReceiverRead timed out