I have an application that uses DIME to send and receive attachments. Now I
want to migrate to WSE 3.0 and as I understand it DIME is not supported. I
got lost with the web pages on how to send/receive large amounts of data.
Maybe someone can help me translate WSE 2.0 code to WSE compatible code or
explain the differences and what needs to be done. Currently I have overrides
like:

Public Class SoapEnvelopeWithAttachment
   Inherits SoapEnvelope
. . .
   Public Overrides Sub WriteToStream(ByVal StreamToWriteTo As
System.IO.Stream, ByVal closeStream As Boolean)

. . .
   Public Shared Function ReadFromStream(ByVal InStream As
System.IO.Stream) As SoapEnvelopeWithAttachment

These functions are called like:

       If RequestType = MessageFormat.Application_Dime Then
           DirectCast(se,
SoapEnvelopeWithAttachment).WriteToStream(objRequest.GetRequestStream(), True)
       Else
           se.WriteToStream(objRequest.GetRequestStream(), True)
       End If

and

           If ResponseType = MessageFormat.Text_Xml Then
. . .
               Return seResponse
           Else
               If objResponse.ContentType.IndexOf("application/dime") = -1
Then
                   Throw New Exception("Expected response of contenttype
'application/dime'")
               End If
               seResponseWA =
SoapEnvelopeWithAttachment.ReadFromStream(objResponse.GetResponseStream)
               objResponse.Close()
               Return seResponseWA
           End If

What needs to happen to convert this application to use MTOM (or Mime)? I am
not sure what the reason to move away from Dime or what the advantages of
MTOM are.

Thank you for your patience.

Kevin