Clients using the .net sdk 2.0 work for Services using doc-literal-wrapped services generated by jbossws 1.0.x on jboss 4.0.5 for me so far. I did not try the .net 3.0 sdk so far. Your could try to switch to doc-literal (if you are not already using this style) or using the .net 2.0 sdk (Is it possible to use them in parallel?) View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4027863#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...