  Which ECOs (patches) have been installed? 
 The Question is:
 
How do I determine which ECO's have been applied to our system so I can
 adequately determine if any further ECO's need to be applied and/or install
 other VMS software that requires certain ECO's?
 
 The Answer is:
 
  Please see the "How can I tell what software (and version) is installed?"
  section in the OpenVMS FAQ, and please see the the information on DSNlink
  in the FAQ, and see the section "How do I acquire OpenVMS patches, fixes,
  and ECOs?" in the FAQ.
 
