Hello, take a look here learn.microsoft.com/en-us/ef/core/miscellaneous/connection-strings or you can take a look at the DentneD.exe.config file in the release of the software. There you can find a template for a connection on a SQL server that has username and password enabled (learn.microsoft.com/en-us/sql/relational-databases/security/authentication-access/create-a-login?view=sql-server-ver16) you just have to replace DATASOURCE, INITIALCATALOG, USERID and PASSWORD according to your server settings. Also this link can help: github.com/davidegironi/dentned/issues/7#issue-693503265