<s>
HuntBar	B-Application
,	O
aka	O
WinTools	B-Application
or	O
Adware.Websearch	O
,	O
was	O
installed	O
by	O
an	O
ActiveX	B-Application
drive-by	O
download	O
at	O
affiliate	O
Web	O
sites	O
,	O
or	O
by	O
advertisements	O
displayed	O
by	O
other	O
spyware	O
programs	O
—	O
an	O
example	O
of	O
how	O
spyware	O
can	O
install	O
more	O
spyware	O
.	O
</s>
<s>
These	O
programs	O
add	O
toolbars	O
to	O
Internet	B-Application
Explorer	I-Application
,	O
track	O
aggregate	O
browsing	O
behavior	O
,	O
redirect	O
affiliate	O
references	O
,	O
and	O
display	O
advertisements	O
.	O
</s>
