The following steps will create a new Proxy by referencing an already defined client proxy:

1. To illustrate referencing an already compiled client proxy, I first build a client proxy for the Sample Host included in the download.  Launch the sample host by double-clicking the Spike.TestHost.exe located in the TestHost folder:
   
2. Next create a new project in Visual Studio for the class library:
    
3. Then select Add Service Reference...
    
   
4. Next enter the URL for the metadata enabled endpoint:
    
5. Build the project and copy the assembly to the ClientAssemblies folder of the Test Harness
   (Note: in Versions earlier than 1.0.1.0, do not copy the .pdb as this will cause all assemblies to fail to load)
    
6. Next copy the SampleClient.dll.config file:
    
7. This should be placed in the ClientConfiguration sub-folder of the Test Harness
   (Note: in Versions earlier than 1.0.1.0, you will need to create the ClientConfiguration sub-folder first)
   
8. Now that the client has been copied, we are ready to create a new Test Case.  The following are identical steps to those described in Creating a New Test Case and are included here to complete this scenario only
9. After launching the Test Harness, select New Test Case menu item from the File menu:
   
10. Provide a unique name to describe the Test Case and select the SampleClient.dll as the contract name:
    
11. Change the name in the message payload to Sally:
    
12. Now, click the Execute Single button:
    
13. The test case should complete with a 0 being returned:
    
14. And the sample host should indicate a message containing customer Sally was received:
    

Overview