Jun 11, 2020 · Using the jTDS JDBC driver. Before creating a data source to a MS SQL Server database from Virtual DataPort using the jTDS driver and Windows Authentication follow these steps: Download the latest jTDS driver version from here; Extract from the distribution jtds-xxx-dist.zip the file ntlmauth.dll. Extract the file that matches the target ... If the jTDS driver is not able to connect, generally the MS SQL Server driver from Microsoft will work. The only major difference between the two drivers is that when connecting to SQL Server from non-Windows systems, the MS SQL Server driver does not support Windows authentication. It requires SQL Server authentication.