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.