This functionality is supported only if you are using the Classic Agent.
If you are running your Java application from a launcher application executable (*.lax), you must add the appropriate Silk Test Classic .jar file to the CLASSPATH inside the .lax file.
To find out which version of Java the .lax file is using, open a Command Prompt, type the path to Java that displays in the .lax file, and then type java –version. If it is using Java 1.3 and later, add the SilkTest_Java3.jar to the CLASSPATH inside the .lax file.
If you are running your application through a .lax file, make sure you add the .lax file as a new extension in Silk Test Classic.