Problem Summary: If you use the Java Enterprise System uninstaller to uninstall Service Registry, then reinstall and perform post-install configuration, the configuration script fails with an error:
Domain registry already exists. Please specify a different domain.
The problem is that the uninstaller does not stop or remove the Application Server domain for the Registry. This task must be performed manually.
Workaround: Before you reinstall Service Registry, stop the Application Server domain for the Registry, then delete the domain. See Reinstalling Service Registry in Service Registry 3 2005Q4 Administration Guide for details.