A CRM database online/offline

[eluser]Boris Strahija[/eluser]
I need to build a really simple CRM with a really simple search engine This is no problem to do in CI, but it also has to work offline. I think it's going to bi distributed on CD-s or USB sticks.
I still don't have all the details, but what I would like to know is what would be the best way to do something like this. Maybe these a possibility to run CI like this? Or do you have any suggestions?
Thank you