Dear All ! I have developed a Software for a Hospital using vb.net 2005 & Sql Express. Now i want to connect this data through lan. What connection string should i give. Please suggest. Below is my current connection string which i have used for it. Dim conn As New SqlConnection() conn.ConnectionString = "Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|Data\Sadar_Hospital.mdf;Integrated Security=True;User Instance=True"