Hi, I think you need to develop the createUploadFile tag and package it as part of the jbpm4jsf-14.jar First you need the source code for org.jbpm.jsf.core.CoreLibrary.java and add the following line in there addTagHandler("createUploadFile", CreateUploadFileHandler.class);. Then create org.jbpm.jsf.core.handler.CreateUploadFileHandler.java as which calls org.jbpm.jsf.core.action.CreateUploadFileActionListener.java You can base your implementation on the Jbpm team's code, they are pretty straight forward. Make sure you return a List<UploadFileDAO> - with only one object in it, where UploadFileDAO.java is just a trivial Data Access Object that only contains the attributes I mentioned, such as piID, fileVar and fileName, a constructor and a bunch of getters/setters. Hope that helps David View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4152840#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...