<s>
X	B-Application
Image	I-Application
Extension	I-Application
,	O
or	O
XIE	O
was	O
an	O
extension	O
to	O
the	O
X	B-Operating_System
Window	I-Operating_System
System	I-Operating_System
to	O
enhance	O
its	O
graphics	O
capability	O
.	O
</s>
<s>
It	O
was	O
intended	O
to	O
provide	O
a	O
powerful	O
mechanism	O
for	O
the	O
transfer	O
and	O
display	O
of	O
virtually	O
any	O
image	O
on	O
any	O
X-capable	O
hardware	O
.	O
</s>
<s>
It	O
was	O
first	O
released	O
with	O
X11R6	B-Operating_System
in	O
1994	O
.	O
</s>
<s>
It	O
is	O
no	O
longer	O
included	O
in	O
the	O
X11	B-Operating_System
reference	O
distribution	O
,	O
having	O
been	O
removed	O
with	O
X11R6.7	O
in	O
2004	O
.	O
</s>
<s>
In	O
addition	O
to	O
the	O
server	O
and	O
client	O
library	O
,	O
a	O
performance	O
and	O
test	O
tool	O
,	O
xieperf	O
,	O
was	O
included	O
in	O
X11R6	B-Operating_System
.	O
</s>
<s>
XIE	O
was	O
developed	O
under	O
contract	O
to	O
the	O
X	B-Operating_System
Consortium	O
by	O
a	O
San	O
Diego	O
,	O
CA	O
company	O
(	O
no	O
longer	O
extant	O
)	O
called	O
AGE	O
Logic	O
.	O
</s>
<s>
Adequate	O
image	O
performance	O
is	O
instead	O
gained	O
through	O
use	O
of	O
the	O
ubiquitous	O
MIT-SHM	B-Device
extension	O
,	O
which	O
allows	O
transfer	O
of	O
large	O
images	O
between	O
the	O
client	O
and	O
server	O
on	O
the	O
same	O
machine	O
(	O
the	O
common	O
use-case	O
)	O
via	O
shared	B-Operating_System
memory	I-Operating_System
.	O
</s>
