Why, after adding a java executable that uses Deploy Directory to launch the application, does SilkTest only see JavaMainWin and no additional controls?

After adding the executable to the extension enabler it appears in the "Extension\details" dialog box from the agent as loaded but does not show any controls under JavaMainWin.

The launcher used in the executable from Deploy Directory launches another thread to start the application.
This uses Javaw.exe to start the application; therefore the only extension that needs to be loaded is "Java Application".

If ActiveX controls are included then ActiveX will have to be enabled for the Java Application.
Once this is completed with the Jar file in the correct directory and classpath you should gain injection.