What DB can I use for a end user application?

Question

Hi there, I have a question about end user applications. Until now I was only working in MsSQL server environments and had no problems with Databases and so on. But I am about to start a project that will be an application a user will install on his pc at home. Ususaly there is no MsSQL server... ;) But I need some kind of database support. What are you guys using in that case? My requirement are: - easy to install (for the end user), best would be in the setup project - must be able to handle SQL statements Thanx S.