Work from the Settings menu of your Windows environment to set your JDBC driver environment variables.
To set the environment variable in Windows:
1. Select Start > Settings > Control Panel > System. The System Properties window appears.
2. Select the Advanced tab and click Environment Variables. The Environment Variable window appears.
3. At the Environment Variables box, click New under the System variables group box.
The New System Variable dialog box appears:
4. In the Variable name field, type CLASSPATH. In the Variable value field, type: %CLASSPATH%;%DLC%\java\openedge.jar; %DCL%\java\util.jar; %DLC%\java\base.jar;%CLASSPATH%.