System service logging (SSLOG) is a mechanism that records
    system service activity in a process. Its primary purpose is
    to troubleshoot process failure or misbehavior. It is available
    only on OpenVMS Alpha and Integrity server systems.

    Once enabled, the SSLOG mechanism records information about
    system services requested by code running in that process
    context. The system services logged are:

    o  Executive and kernel-mode services

    o  Within privileged shareable image services

    o  Within the OpenVMS executive

    SSLOG does not log the mode of caller services.

    For more information, see the online help for ANALYZE/SSLOG and
    SET PROCESS/SSLOG, and to the VSI OpenVMS System Analysis Tools
    Manual.