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

    Executive loaded image that contains routines that force
    synchronization in an OpenVMS multiprocessing system. This
    version optimized for both uniprocessors and multiprocessors.