No, he forgot the checkbox. Now it works In the future, I need a 64bit and 32bit version for my customers? 64 bit - System.Data.SQLite.dll System.Data.SQLite.Linq.dll or 32 bit - System.Data.SQLite.dll System.Data.SQLite.Linq.dll This sucks! In the videos you don't show that the customers (.exe + dlls) have to install anything.