Hi! this looks like a problem with the xfire client; when using RPC-style operations, the different part elements must not have a namespace in accordance with the basic profile, which states; R2735 An ENVELOPE described with an rpc-literal binding MUST place the part accessor elements for parameters and return value in no namespace. Hope this helps! regards, /Ole eviware.com View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4079124#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...