If your plug-in application uses additional libraries, a COMMANDPARM string, and the APPLICATION attribute to provide access to the PBD’s Application object, the Embed element might look like this:
<EMBED SRC=plugin_tree.pbd WIDTH=370 HEIGHT=320 WINDOW=w_emp_by_dept LIBRARY=http://www.mycompany.com/pb/extra1.pbd LIBRARY=http://www.mycompany.com/pb/extra2.pbd COMMANDPARM="Eastern region" APPLICATION=plugin_tree>