I've been using Pervasive for some time now for client/server applications. It's worked well and I've been happy with that.
I have several projects comming up the are out of my element. Stand alone apps. I have already converted some of the client/server apps to run stand alone. I used PSQL Workstation. It's cheap and works well.
For a number of reasons I need to consider my options. What can I use that is inexpensive to distribute, easy to deal with and is compatible with 9.x, 2000, XP?
I've heard the the jet engine is now a fairly decent DB?