Library /sys$common/syshlp/cms$dw_help.hlb msg_box  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  The Message Box displays informational messages
  to notify you of current status as CMS executes
  transactions.

  You can customize the Message Box to display
  certain options; for more information, click on
  the Message Logging... menu item below.