This feature is available from Alfreso 3.0 and above.
Alfresco 3 has given the facility of Dynamic Deployment for
1.New content/Workflow model.
2.Message Resource Bundle.
3.Alfresco Explorer configuration (Web-client-config.xml).
4.Workflow Process Definition.
Please download this pdf file for working example.
http://docs.google.com/fileview?id=0B2GTDzbcX3UsMWE2NTRmNGYtNDhhNC00NTIyLTllZjYtOTNmMmZlMjc2OWNl&hl=en
