<s>
HTTrack	B-Language
is	O
a	O
free	B-Application
and	O
open-source	B-Application
Web	B-Application
crawler	I-Application
and	O
offline	B-Protocol
browser	I-Protocol
,	O
developed	O
by	O
Xavier	O
Roche	O
and	O
licensed	O
under	O
the	O
GNU	O
General	O
Public	O
License	O
Version	O
3	O
.	O
</s>
<s>
HTTrack	B-Language
allows	O
users	O
to	O
download	O
World	O
Wide	O
Web	O
sites	O
from	O
the	O
Internet	O
to	O
a	O
local	O
computer	O
.	O
</s>
<s>
By	O
default	O
,	O
HTTrack	B-Language
arranges	O
the	O
downloaded	O
site	O
by	O
the	O
original	O
site	O
's	O
relative	O
link-structure	O
.	O
</s>
<s>
HTTrack	B-Language
can	O
also	O
update	O
an	O
existing	O
mirrored	O
site	O
and	O
resume	O
interrupted	O
downloads	O
.	O
</s>
<s>
HTTrack	B-Language
is	O
configurable	O
by	O
options	O
and	O
by	O
filters	O
(	O
include/exclude	O
)	O
,	O
and	O
has	O
an	O
integrated	O
help	O
system	O
.	O
</s>
<s>
There	O
is	O
a	O
basic	O
command	O
line	O
version	O
and	O
two	O
GUI	B-Application
versions	O
(	O
WinHTTrack	B-Language
and	O
WebHTTrack	O
)	O
;	O
the	O
former	O
can	O
be	O
part	O
of	O
scripts	O
and	O
cron	O
jobs	O
.	O
</s>
<s>
HTTrack	B-Language
uses	O
a	O
Web	B-Application
crawler	I-Application
to	O
download	O
a	O
website	O
.	O
</s>
<s>
HTTrack	B-Language
can	O
follow	O
links	O
that	O
are	O
generated	O
with	O
basic	O
JavaScript	B-Language
and	O
inside	O
Applets	B-Language
or	O
Flash	B-Operating_System
,	O
but	O
not	O
complex	O
links	O
(	O
generated	O
using	O
functions	O
or	O
expressions	O
)	O
or	O
server-side	O
image	B-General_Concept
maps	I-General_Concept
.	O
</s>
