<s>
NaviServer	B-Language
is	O
a	O
high	O
performance	O
web	B-Application
server	I-Application
written	O
in	O
C	B-Language
and	O
Tcl	B-Operating_System
.	O
</s>
<s>
It	O
can	O
be	O
easily	O
extended	O
in	O
either	O
language	O
to	O
create	O
web	O
sites	O
and	O
services	O
;	O
there	O
are	O
over	O
35	O
modules	O
available	O
(	O
including	O
database	O
integration	O
or	O
protocol	O
support	O
for	O
UDP	B-Protocol
,	O
SMTP	B-Protocol
,	O
LDAP	B-Protocol
,	O
DNS	B-Protocol
,	O
COAP	B-Device
,	O
etc	O
.	O
)	O
</s>
<s>
NaviServer	B-Language
is	O
licensed	O
under	O
the	O
terms	O
of	O
the	O
Mozilla	B-License
Public	I-License
License	I-License
(	O
MPL	O
)	O
.	O
</s>
<s>
built-in	O
statistics	O
(	O
for	O
mutex	B-Operating_System
locks/rwlocks	O
,	O
cache	O
,	O
db-handles	O
,	O
...	O
)	O
</s>
<s>
NaviServer	B-Language
is	O
based	O
on	O
AOLserver	B-Language
(	O
version	O
4.10	O
)	O
,	O
AOL	O
's	O
open-source	B-Application
web	B-Application
server	I-Application
.	O
</s>
<s>
The	O
NaviServer	B-Language
project	O
started	O
as	O
a	O
fork	B-Application
of	O
the	O
AOLserver	B-Language
project	O
in	O
July	O
2005	O
.	O
</s>
<s>
It	O
is	O
different	O
by	O
supporting	O
multiple	O
protocols	O
,	O
providing	O
higher	O
scalability	O
through	O
asynchronous	B-Architecture
I/O	I-Architecture
and	O
aims	O
to	O
be	O
less	O
conservative	O
with	O
new	O
feature	O
development	O
.	O
</s>
<s>
Historically	O
NaviServer	B-Language
was	O
the	O
original	O
name	O
of	O
the	O
server	O
,	O
a	O
closed-source	O
product	O
by	O
a	O
company	O
called	O
NaviSoft	O
in	O
the	O
early	O
1990s	O
.	O
</s>
<s>
It	O
was	O
bought	O
by	O
AOL	O
in	O
1995	O
,	O
and	O
released	O
as	O
open-source	B-Application
in	O
1999	O
as	O
AOLserver	B-Language
after	O
they	O
released	O
Mozilla	B-Operating_System
.	O
</s>
<s>
This	O
friendly-fork	O
takes	O
the	O
code	O
back	O
to	O
its	O
original	O
name	O
.	O
</s>
<s>
Large	O
applications	O
of	O
NaviServer	B-Language
are	O
the	O
ArsDigita	B-Protocol
Community	I-Protocol
System	I-Protocol
and	O
OpenACS	B-Protocol
in	O
particular	O
.	O
</s>
