/sys$common/syshlp/DBG$UIHELP.HLB  —  DEBUGUI  ha_interpret_donotuse
  The heap analyzer adds a new segment type name to the Do-not-use Type
  List when you perform one of the following actions:

   -  Choose the Do Not Use Type context-sensitive menu item from the
      Memory Map or the Type Histogram.

      The segment type added is the one associated with the segment your
      mouse arrow is pointing to.

   -  Choose the Add to Do-not-use Type List pull-down menu item from the
      Options menu on the Memory Map.

      The segment type added is the one you type into the dialog box that
      appears for your input.

  For information on other heap analyzer screen locations and pop-up
  menus, click the 'On Context' menu item in the heap analyzer Help menu,
  then click the location of interest.

  For information on using the heap analyzer, see the 'On Window' menu
  item in the heap analyzer Help menu.
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