_load-handler.ss_

  load-handler.ss provides a unit designed to be used with the launchers that drscheme creates.
  
_teachpackr.ss_

_teachpacks.ss_

_Dynamic linking for DrScheme_: After DrScheme starts up, it adds
definitions into the top-level matching these signatures:

  mzlib:core^
  mred^
  drscheme:init^
  framework^
  setup:plt-installer^
  zodiac:system (prefix: zodiac)
  drscheme:prefs^ (prefix: drscheme:prefs)
  drscheme:cogen^ (prefix: drscheme:cogen)
  drscheme:text^ (prefix: drscheme:text)
  drscheme:snip^ (prefix: drscheme:snip)
  drscheme:export^ (prefix: drscheme:export)
  drscheme:tool^ (prefix: drscheme:tool)
  drscheme:app^ (prefix: drscheme:app)
  drscheme:main^ (prefix: drscheme:main)

These can then be used for dynamic linking.