You could look at SQL Server Compact Edition. This can be installed either by running a .msi file or by copying the .dll files to the right location.
Some more info about SQLCE is at http://en.wikipedia.org/wiki/SQL_Server_Compact
Original author: https://github.com/SQL-FineBuild/Common/wiki/ 1-click install and best practice configuration of SQL Server 2019, 2017 2016, 2014, 2012, 2008 R2, 2008 and 2005.
When I give food to the poor they call me a saint. When I ask why they are poor they call me a communist - Archbishop Hélder Câmara