Just as a quick reminder: Lotus Notes/Domino 6.5.x and Lotus Enterprise Integrator 6.5.x support will end on April 30th which is only 30 days away!
That means no phone support or code fixes!
You can find more infos here:
IBM announced End of service (EOS) for Notes/Domino 6.5.x
If you need to upgrade older systems please read the Upgrade Cookbook which can be found on the Lotus Notes and Domino Wiki.