An answer to your question is: they are in the database (which is the current way where processdefinitions are also stored) and available to the processclassloader IF they are in in a classes dir in the processarchive when it is deployed. Read http://docs.jboss.com/jbpm/v3/userguide/jpdl.html#delegation Besides that it is indeed difficult... at least to understand what you mean by: anonymous wrote : i use a gpd site in to deploy process | The second thing that is hard to understand is: "why and what are you trying to achieve?" Would be much nicer to just phrase that instead of insinuating things no-one else asks questions about (hmmm..... ) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4047384#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...