Service mapping provides functionality for hiding the name of the remote service and remote method. This is useful if you want your service class name "obfuscated".
The Flash client will use the logical name of the service specified in the service mapping section of the web.config file.

Web.config file for service mapping:

<services>
     <service>
          <name>Logical service name</name>
          <service-location>.NET service class full type name</service-location>
          <methods>
               <remote-method>
                    <name>Logical method name</name>
                    <method>.NET method name</method>
               </remote-method>
          </methods>
     </service>
</services>