Send DIME Attachment from .Net Client(C#) to J2EE(AXIS Web Service2.0)

//Create a proxy class for the web service
GESAttachment.GESServiceServiceWse ws = new GESAttachment.GESServiceServiceWse();

//Convert the file to a Memory Stream
FileInfo fi = new FileInfo(FileName);
FileStream fs = fi.OpenRead();
byte [] bytes = new byte[fs.Length];
int numRead = fs.Read(bytes, 0, (int)fs.Length);
fs.Close();
MemoryStream ms = new MemoryStream(bytes);

//Create and Add the Attachment to the SOAPContext
DimeAttachment dimeAttach = new DimeAttachment("text/plain",TypeFormat.MediaType,ms);
ws.RequestSoapContext.Attachments.Add(dimeAttach);

//Call the Web service method
string strReturn = ws.processAttachments();
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The TCPMONITOR exceptions is as follows: