<subsystem xmlns="urn:jboss:domain:jacorb:1.1">
  <orb>
    <initializers transactions="on"/>
  </orb>
</subsystem>
        To enable IIOP you must have the JacORB subsystem installed, and the <iiop/> element present in the ejb3 subsystem configuration. The standalone-full.xml configuration that comes with the distribution has both of these enabled.
The <iiop/> element takes two attributes that control the default behaviour of the server, for full details see EJB3 subsystem configuration guide.
To enable JTS simply add a <jts/> element to the transactions subsystem configuration.
It is also necessary to enable the JacORB transactions interceptor as shown below.
<subsystem xmlns="urn:jboss:domain:jacorb:1.1">
  <orb>
    <initializers transactions="on"/>
  </orb>
</subsystem>
        Downloading stubs directly from the server is no longer supported. If you do not wish to pre-generate your stub classes JDK Dynamic stubs can be used instead. The enable JDK dynamic stubs simply set the com.sun.CORBA.ORBUseDynamicStub system property to true.
<jboss:ejb-jar xmlns:jboss="http://www.jboss.com/xml/ns/javaee" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:iiop="urn:iiop" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.jboss.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-ejb3-2_0.xsd http://java.sun.com/xml/ns/javaee http://www.jboss.org/j2ee/schema/jboss-ejb3-spec-2_0.xsd urn:iiop jboss-ejb-iiop_1_0.xsd" version="3.1" impl-version="2.0"> <assembly-descriptor> <iiop:iiop> <ejb-name>*</ejb-name> </iiop:iiop> </assembly-descriptor> </jboss:ejb-jar>