Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, SS_INT  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 system service intercepted

    Facility: DEBUG, VMS Debugger

    Explanation: This error code is used by the debugger to indicate
    that a system service has been intercepted.

    User Action: Submit an SPR. This message is handled internally,
    and should never be signaled to the user.