Autovue.properties configuration

I am trying to add custom cmdline parameters in the autovue.properties file. Specifically the -javaagent command line parameter. When I add it, I get a "cmd line has two class names" error and it shuts down.
Also, we are trying to extend the JVue applet as per the developer documentation. When I start the Autovue viewer from the autovue.exe command, it works. However, if I initiate it via the ActiveX control, it is not loading up.

Is there any way to support the javaagent cmd line option via autovue.properties. If not, is there any way to extend whatever class is called from the ActiveX integration component to add the functionality we need.