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

 last value is not defined

    Facility: DEBUG, VMS Debugger

    Explanation: '\' is not currently defined.

    User Action: Do not reference '\' until a DEPOSIT or EVALUATE
    command has been performed.