Does anyone know, how to connect to a SQL Server from IBM Websphere using Type 4 JDBC ? I have downloaded the SQL Server driver from the microsoft site. I then updated the classpath variable with the following 3 jar files. (msbase.jar, msutil.jar, mssqlserver.jar) I am getting a Class Not Found exception. I am able to successfully create a JDBC connection using Type 1 (JDBC-ODBC bridge) connection. Any help is appreciated. Thanks.