Web Services, "Write Secure Web Services," by Vijay P. Mehta
Visual Studio Magazine, September 2005

The MTOM_WSE solution consists of two projects: a web service to insert and retrieve pdf's from a database, and a client to consume the web service.  
You will need to create the database, and setup an Asp.Net web site (http:\\localhost\MTOM_WSE) to use the example.  You will also need to have WSE 3.0 (CTP), 
Visual Studio 2005 (Beta 2), and a SQL Server Database installed.

Contents of WSE_Sample.sql
1. DB Script used for creating required tables. Create a new SQL Server DB called WSE_Sample and run script

Contents of WSE_Client:
1. MTOMTest.cs & form - The Client used for consuming the WSE 3.0 web services

Contents of MTOM_WSE project:
1. SecureMTOM.asmx & SecureMTOM.cs - WSE 3.0 enabled web service which uses mutual certificate security and MTOM

