/sys$common/syshlp/helplib.hlb Sys Files, [SYSLIB], LIBRTL_INSTRUMENTED.EXE  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Version of LIBRTL that has been instrumented with memory management
    tracing; used in conjunction with the Debugger to provide support for
    the Heap Analyzer