<s>
CGIProxy	B-Language
is	O
a	O
CGI	O
proxy	O
software	O
package	O
.	O
</s>
<s>
When	O
used	O
,	O
a	O
CGI	O
(	O
Common	B-Language
Gateway	I-Language
Interface	I-Language
)	O
proxy	O
appears	O
to	O
a	O
user	O
as	O
a	O
web	O
page	O
that	O
allows	O
the	O
user	O
to	O
access	O
a	O
different	O
site	O
through	O
it	O
,	O
in	O
most	O
cases	O
anonymously	O
.	O
</s>
<s>
CGIProxy	B-Language
is	O
written	O
in	O
the	O
Perl	B-Language
programming	I-Language
language	I-Language
.	O
</s>
<s>
It	O
can	O
be	O
installed	O
on	O
any	O
web	B-Application
server	I-Application
which	O
can	O
execute	O
a	O
Perl	B-Language
program	O
via	O
CGI	O
,	O
and	O
which	O
supports	O
Non-Parsed	O
Header	O
CGI	B-Language
scripts	I-Language
.	O
</s>
<s>
Supported	O
protocols	O
include	O
HTTP	B-Protocol
,	O
FTP	B-Protocol
and	O
SSL	B-Protocol
,	O
as	O
well	O
as	O
related	O
technologies	O
:	O
JavaScript	B-Language
,	O
Adobe	B-Operating_System
Flash	I-Operating_System
.	O
</s>
<s>
CGIProxy	B-Language
development	O
stalled	O
between	O
December	O
25	O
,	O
2008	O
,	O
and	O
December	O
9	O
,	O
2011	O
but	O
later	O
saw	O
six	O
releases	O
in	O
2014	O
with	O
quite	O
an	O
extensive	O
changelog	O
,	O
including	O
Windows	O
support	O
.	O
</s>
<s>
Though	O
the	O
nature	O
of	O
the	O
Perl	B-Language
language	I-Language
practically	O
requires	O
that	O
the	O
source	O
code	O
of	O
CGIProxy	B-Language
is	O
visible	O
to	O
those	O
who	O
install	O
it	O
,	O
CGIProxy	B-Language
is	O
not	O
technically	O
open-source	B-Application
software	I-Application
due	O
to	O
its	O
commercial	O
license	O
fee	O
.	O
</s>
