OpenVMS System Messages

This document, titled OpenVMS System Messages: Companion Guide for Help Message Users, describes the centralized error message facility within the OpenVMS operating system. It provides instructions on how to use the Help Message (MSGHLP) utility to retrieve online message documentation at the DCL prompt, as well as how to customize and modify the Help Message database for specific user needs. The manual also includes details on recovering from typical error conditions, interpreting condition codes, and handling exception conditions. It contains a comprehensive list of messages for various OpenVMS facilities, such as BACKUP, MOUNT, and the System Bugcheck.