In reply to Alan Churchill.

Alan, the XCMD option change was for Windows only, and only when relying on the registered COM server command (associated with the SAS.Workspace progID in the registry).

On UNIX flavors and on any object-spawner-enabled environment, the command is going to be registered in the SAS metadata server. If you want to enable XCMD, you'll need to make that change in the server definition in SAS Management Console. Check out Paul Homes' blog on the topic.