hnd
hne
hnf
hnm
hns
hnv
ho
hob
hoc
hod
hof
hog
hol
honmod
hop
hot
hotspot
hp
hp$
hp-
hp_
hp~
hp1
hp2
hp8
hpc
hpd
hpe
hpf
hpfs
hpg
hpgl
hpgl2
hph
hpi
hpj
hpk
hpl
hplg
hplj
hpm
hpp
hppcl
hpr
hpr5
hprj
hps
hpt
hp-ux
hpux
filename extensions