<s>
VirtuaWin	B-Application
is	O
an	O
open	O
source	O
virtual	B-Application
desktop	I-Application
manager	O
for	O
Microsoft	B-Application
Windows	I-Application
systems	O
.	O
</s>
<s>
It	O
allows	O
the	O
user	O
to	O
organize	O
applications	O
over	O
several	O
virtual	B-Application
desktops	I-Application
,	O
providing	O
the	O
multiple-desktop	O
feature	O
present	O
in	O
Linux	B-Application
system	O
to	O
Windows	B-Application
users	O
.	O
</s>
<s>
Keyboard	O
shortcuts	O
can	O
be	O
configured	O
for	O
direct	O
access	O
to	O
each	O
of	O
the	O
virtual	B-Application
desktops	I-Application
.	O
</s>
<s>
By	O
clicking	O
on	O
the	O
tray	O
icon	O
,	O
the	O
user	O
may	O
access	O
some	O
of	O
the	O
windows	B-Application
on	O
another	O
desktop	O
,	O
or	O
make	O
some	O
window	O
a	O
"	O
sticky	O
"	O
window	O
-	O
one	O
that	O
is	O
present	O
on	O
each	O
of	O
the	O
virtual	B-Application
desktops	I-Application
.	O
</s>
<s>
The	O
number	O
of	O
available	O
virtual	B-Application
desktops	I-Application
may	O
be	O
configured	O
up	O
to	O
20	O
,	O
where	O
4	O
is	O
the	O
default	O
setting	O
.	O
</s>
<s>
An	O
API	B-General_Concept
for	O
external	O
modules	O
is	O
provided	O
,	O
which	O
can	O
be	O
downloaded	O
and	O
installed	O
separately	O
.	O
</s>
<s>
External	O
authors	O
have	O
contributed	O
more	O
than	O
20	O
modules	O
to	O
the	O
project	O
,	O
e.g.	O
,	O
an	O
enhanced	O
overview	O
of	O
desktops	O
and	O
windows	B-Application
by	O
a	O
pager	B-Application
,	O
changing	O
desktop	O
wallpaper	O
automatically	O
,	O
switching	O
desktops	O
via	O
command	O
line	O
,	O
tracking	O
the	O
time	O
spent	O
on	O
each	O
desktop	O
,	O
etc	O
.	O
</s>
<s>
A	O
portable	O
version	O
for	O
VirtuaWin	B-Application
is	O
available	O
,	O
in	O
addition	O
to	O
the	O
regular	O
installer	O
.	O
</s>
