Here is a list of bundled XEmacs' packages (note that some are
MULE-only):

Sun             ediff           hm--html-menus  pgg             texinfo
ada             edit-utils      hyperbole       prog-modes      text-modes
apel            edt             ibuffer         ps-print        textools
auctex          efs             idlwave         psgml           time
bbdb            eieio           igrep           psgml-dtds      tm
build           elib            ilisp           python-modes    tooltalk
c-support       emerge          ispell          re-builder      tpu
calc            erc             jde             reftex          tramp
calendar        escreen         liece           riece           vc
cc-mode         eshell          mail-lib        rmail           vc-cc
cedet-common    ess             mailcrypt       ruby-modes      vhdl
clearcase       eterm           mew             sasl            view-process
cogre           eudc            mh-e            scheme          viper
cookie          footnote        mine            semantic        vm
crisp           forms           misc-games      sgml            w3
debug           fortran-modes   mmm-mode        sh-script       x-symbol
dictionary      frame-icon      net-utils       sieve           xemacs-base
dired           fsf-compat      ocaml           slider          xemacs-devel
docbookide      games           oo-browser      sml-mode        xetla
easypg          general-docs    os-utils        sounds-au       xlib
ecb             gnats           pc              sounds-wav      xslide
ecrypto         gnus            pcl-cvs         speedbar        xslt-process
ede             guided-tour     pcomplete       strokes         xwem
edebug          haskell-mode    perl-modes      supercite       zenirc

Flavor:
        * mule          - MUlti-Lingual Emacs
