Configuring Java-based adapters
From the dtx.ini file, you can add .jar files to the CLASSPATH variable. To do this, you must add an External Jar Files section to dtx.ini and list the applicable jar files, similar to the following example:
[External Jar Files]
jar1=c:\J2EE\lib\j2ee.jar
jar2=c:\mypath\myjar.jar
For more information, see the Resource Adapters documentation.