When switching from the old CIAO runtime to the new one
  There are only one thing needs to be done to migrate the component
  implementation from the old runtime to the new runtime.
  
  Find all the component MPC files in your component implementation
  source directories and make the following changes.
  for every project in your MPC files which inherites from any of
  the following MPC template (base project):  ciao_client, ciao_component,
  ciao_servant, ciao_server, replace them with   ciao_client_dnc,
  ciao_component_dnc, ciao_servant_dnc, ciao_server_dnc. Then
  generate your makefile/solution/project files using either
  mwc.pl or mpc.pl and build (rebuild) your
  binaries.
  A couple examples of the component implementation are at:
  $CIAO_ROOT/DAnCE/tests. 
When switching from the new CIAO runtime to the old one
  
    Reverse the above changes.
  
Email: ciao-users@cse.wustl.edu