WebServices | Unable to send large xml files 250K + loan numbers

Hi Experts,

I am having a hard time sending 250K+ files using the webservices protocol. I had success sending 50K+ files but getting the below error when I send 250K+ files.

Action.c(4): web_set_max_html_param_len was successful   [MsgId: MMSG-26392]
Action.c(7): web_set_user was successful   [MsgId: MMSG-26392]
Action.c(9): Web service call "evaluateLoanBySubscriber_102" started
Action.c(9): Error stack trace:    at System.String.GetStringForStringBuilder(String value, Int32 startIndex, Int32 length, Int32 capacity)
   at System.Convert.ToBase64String(Byte[] inArray, Int32 offset, Int32 length, Base64FormattingOptions options)
   at System.Convert.ToBase64String(Byte[] inArray)
   at Mercury.LR.LrWsNetClient.LrXmlSerializer.SerializeBase64(Object obj, String argName, XmlNode xmlResNode)
   at Mercury.LR.LrWsNetClient.LrXmlSerializer.SerializeArray(Object obj, String argName, XmlNode xmlResNode, ITypeMetadata metadata)
   at Mercury.LR.LrWsNetClient.LrXmlSerializer.Serialize(Object obj, String argName, XmlNode xmlResNode, Boolean renderNullAsNillableElement, Boolean isSpecified, ITypeMetadata metadata)
   at Mercury.LR.LrWsNetClient.LrXmlSerializer.Serialize(Object obj, String argName, ITypeMetadata metadata, Boolean saveBase64LongStringsAsFile, String scriptBaseFolder)
   at Mercury.LR.LrWsNetClient.ResultArgExtractor.AppendArgToXmlDoc(XmlDocument xmlDoc, Object argObj, String argName, ParameterInfo info)
   at Mercury.LR.LrWsNetClient.ResultArgExtractor.CreateXmlArgsDoc()
   at Mercury.LR.LrWsNetClient.ResultArgExtractor.ExtractArgAsXml(String sArgPath, ArgumentExtractionType extractionType)
   at Mercury.LR.LrWsNetClient.ResultArgExtractor.ExtractArg(String sArgPath, Boolean IsSaveResultArgumentsAsIs, ArgumentExtractionType extractionType)
   at Mercury.LR.LrWsNetClient.ProxyCreator.ExtractArg(String sArgPath, ArgumentExtractionType extractionType)
   at Mercury.LR.LrWsNetClient.NetReplay.ExtractResultArg(String sArgPath, ArgumentExtractionType extractionType, Array& barrArgValue)
Action.c(9): Error: ExtractResultArg failure: Exception of type 'System.OutOfMemoryException' was thrown..
Action.c(9): Error: Web service call "evaluateLoanBySubscriber_102" execution failed

This is the code I am using...

 web_set_max_html_param_len("1000000");

   web_set_user("xxxx", "xxxx", "xxx.xxx.com:9062");

 web_service_call( "StepName=evaluateLoanBySubscriber_102",   "SOAPMethod=EDSSecureDecisionWebService|EDSSecureDecisionServicePort|evaluateLoanBySubscriber",   "ResponseParam=response",  

 "Service=EDSSecureDecisionWebService",  

 "ExpectedResponse=AnySoap",  

 "Snapshot=t1375195258.inf",   

BEGIN_ARGUMENTS,  

 "arg0=selling system",  

 "xml:arg1="   

 "<arg1 base64Mode=\"file\">C:\\Users\\c30259\\Documents\\LR\\Webservices\\ Files\\250_1.xml</arg1>",   END_ARGUMENTS,  

 BEGIN_RESULT,  

 "return=Param_return",  

 END_RESULT,

  LAST);

 return 0;

Please advice...

-Arjun