This is a curiousity question. I've a credit card applicatoin that has to support both flat files and also the database like a spot to persist data. I believed maybe utilizing a .csv or tab-delimited group of files as input ...

Can you really use NHibernate to create to complete both persistance tasks?

Use the Jet engine (see this)

Dialect along with other nhibernate configurations ought to be the ones for Microsoft Access.

No to not the very best of my understanding. I have a similar requirement and also have wound up simply using flat XML files and hands moving all of the CRUD.

Just today Used to do occur to notice this File System Database on codeplex but haven't investigated it correctly yet.