<s>
The	O
Microsoft	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
(	O
.NET	B-Application
CF	O
)	O
is	O
a	O
version	O
of	O
the	O
.NET	B-Application
Framework	I-Application
that	O
is	O
designed	O
to	O
run	O
on	O
resource	O
constrained	O
mobile/embedded	O
devices	O
such	O
as	O
personal	B-Application
digital	I-Application
assistants	I-Application
(	O
PDAs	B-Application
)	O
,	O
mobile	O
phones	O
,	O
factory	O
controllers	O
,	O
set-top	O
boxes	O
,	O
etc	O
.	O
</s>
<s>
The	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
uses	O
some	O
of	O
the	O
same	O
class	O
libraries	O
as	O
the	O
full	O
.NET	B-Application
Framework	I-Application
and	O
also	O
a	O
few	O
libraries	O
designed	O
specifically	O
for	O
mobile	O
devices	O
such	O
as	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
controls	I-Operating_System
.	O
</s>
<s>
However	O
,	O
the	O
libraries	O
are	O
not	O
exact	O
copies	O
of	O
the	O
.NET	B-Application
Framework	I-Application
;	O
they	O
are	O
scaled	O
down	O
to	O
use	O
less	O
space	O
.	O
</s>
<s>
It	O
is	O
possible	O
to	O
develop	O
applications	B-Application
that	O
use	O
the	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
in	O
Visual	O
Studio	O
.NET	B-Application
2003	O
,	O
in	O
Visual	O
Studio	O
2005	O
and	O
in	O
Visual	O
Studio	O
2008	O
,	O
in	O
C#	B-Application
or	O
Visual	B-Language
Basic	I-Language
.NET	I-Language
.	O
</s>
<s>
Applications	B-Application
developed	O
with	O
Basic4ppc	B-Language
are	O
also	O
eventually	O
compiled	O
for	O
the	O
.NET	B-Application
CF	O
.	O
</s>
<s>
The	O
resulting	O
applications	B-Application
are	O
designed	O
to	O
run	O
on	O
a	O
special	O
,	O
mobile-device	O
,	O
high	O
performance	O
JIT	O
compiler	O
.	O
</s>
<s>
The	O
Microsoft	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
3.5	O
Redistributable	O
contains	O
the	O
common	O
language	O
runtime	O
and	O
class	O
libraries	O
built	O
for	O
the	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
.	O
</s>
<s>
In	O
addition	O
to	O
version	O
3.5	O
support	O
,	O
it	O
also	O
supports	O
applications	B-Application
developed	O
for	O
version	O
1.0	O
and	O
2.0	O
.	O
</s>
<s>
The	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
3.5	O
provides	O
new	O
features	O
such	O
as	O
Windows	O
Communication	O
Foundation	O
,	O
LINQ	O
,	O
SoundPlayer	O
,	O
new	O
runtime	O
tool	O
support	O
,	O
and	O
many	O
other	O
features	O
.	O
</s>
<s>
The	O
UI	O
development	O
is	O
based	O
on	O
Windows	B-Application
Forms	I-Application
which	O
is	O
also	O
available	O
on	O
the	O
desktop	O
version	O
of	O
the	O
.NET	B-Application
Framework	I-Application
.	O
</s>
<s>
User	O
interfaces	O
can	O
easily	O
be	O
created	O
with	O
Visual	O
Studio	O
by	O
placing	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
controls	I-Operating_System
like	O
buttons	O
,	O
text	O
boxes	O
,	O
etc	O
.	O
</s>
<s>
Also	O
features	O
like	O
data	O
binding	O
are	O
available	O
for	O
the	O
.NET	B-Application
CF	O
.	O
</s>
<s>
A	O
major	O
disadvantage	O
of	O
the	O
UI	O
development	O
is	O
that	O
modern	O
looking	O
applications	B-Application
with	O
support	O
for	O
finger-based	O
touch	O
screen	O
interaction	O
are	O
not	O
that	O
easy	O
to	O
implement	O
.	O
</s>
<s>
This	O
is	O
mainly	O
due	O
to	O
the	O
desktop-oriented	O
user	O
interface	O
concept	O
on	O
which	O
Windows	B-Application
Forms	I-Application
is	O
based	O
,	O
although	O
some	O
third	O
party	O
libraries	O
with	O
custom	O
controls	O
for	O
this	O
purpose	O
are	O
available	O
.	O
</s>
<s>
To	O
be	O
able	O
to	O
run	O
applications	B-Application
powered	O
by	O
the	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
,	O
the	O
platform	O
must	O
support	O
the	O
Microsoft	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
runtime	O
.	O
</s>
<s>
Some	O
operating	B-General_Concept
systems	I-General_Concept
which	O
do	O
include	O
.NET	B-Application
CF	O
are	O
Windows	B-Operating_System
CE	I-Operating_System
4.1	O
,	O
Microsoft	B-Device
Pocket	I-Device
PC	I-Device
,	O
Microsoft	B-Device
Pocket	I-Device
PC	I-Device
2002	O
,	O
Smartphone	B-Operating_System
2003	I-Operating_System
,	O
and	O
Symbian	O
v3	O
.	O
</s>
<s>
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
applications	B-Application
can	O
be	O
run	O
on	O
desktop	O
computers	O
with	O
the	O
full	O
.NET	B-Application
Framework	I-Application
as	O
long	O
as	O
they	O
only	O
access	O
the	O
shared	O
parts	O
of	O
both	O
frameworks	O
,	O
though	O
their	O
user	O
interface	O
cannot	O
be	O
upgraded	O
to	O
look	O
like	O
that	O
of	O
an	O
application	O
developed	O
for	O
desktop	O
PCs	O
.	O
</s>
<s>
A	O
version	O
of	O
the	O
.NET	B-Operating_System
Compact	I-Operating_System
Framework	I-Operating_System
is	O
also	O
available	O
for	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
console	O
.	O
</s>
<s>
While	O
it	O
features	O
the	O
same	O
runtime	O
as	O
the	O
regular	O
.NET	B-Application
CF	O
,	O
only	O
a	O
subset	O
of	O
the	O
class	O
library	O
is	O
available	O
.	O
</s>
<s>
This	O
version	O
is	O
used	O
by	O
XNA	B-Device
Framework	I-Device
to	O
run	O
managed	O
games	O
on	O
the	O
console	O
.	O
</s>
<s>
Unlike	O
other	O
versions	O
of	O
.NET	B-Application
CF	O
,	O
the	B-Operating_System
Xbox	I-Operating_System
360	I-Operating_System
version	O
allows	O
setting	O
processor	B-Operating_System
affinity	I-Operating_System
to	O
threads	O
created	O
.	O
</s>
