Not knowing how much off topic this would be, I just thought I paste a link here:
http://registry.sourceforge.net/
These people seem to be implementing a kinda Windows registry clone into Linux, but then secure, stable 'n' stuff...
Since the many registry implementation discussions here, I thought, why not throw this into the discussion too? It might be worth to take a look here and perhaps think about using some of their stuff.
Greetings, Robert van Herk