Library /sys$common/syshlp/sysmanhelp.hlb STARTUP, ENABLE, Example  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  SYSMAN> STARTUP ENABLE FILE /NODE=NODE22 DECSET$ENVMGR_STARTUP.COM

      This command modifies the startup database. NODE22 will have
      the DECSET environment manager installed at startup.