As Duncan points out, the Java Language Conversion Assistant, version 3.0 is now in an open beta.  The big change is the support for converting J2EE 1.3 libraries including EJB, JAAS, JCE, JMS, JNDI, and RMI.  If a company has existing investments in J2EE, and they want to carry these forward to the .NET Framework, this tool is a perfect match.  Expect lots more JLCA goodness from Travis and team in the future. If you're new to converting apps to JLCA, check out Hello World.