External jar references in Plug-Ins

Hi,

Does anyone know how we can access an external jar (outside the plug-in directory) while deploying IDEA plug-in. There is no place to mention it in the plugin.xml file and by default, IDEA takes reads all the jars in the plug-in's lib directory.

Is there a way to specify or indicate usage of a jar outside the lib folder during development and deployment?

Thanks,
kc.