<s>
Linux	B-Operating_System
XP	I-Operating_System
was	O
a	O
Fedora	O
Linux-based	O
shareware	B-License
Linux	B-Application
distribution	I-Application
designed	O
to	O
imitate	O
Windows	B-Application
environment	O
using	O
GNOME	B-Application
desktop	I-Application
;	O
it	O
could	O
run	O
some	O
Microsoft	B-Application
Windows	I-Application
programs	O
using	O
the	O
Wine	B-Application
compatibility	I-Application
layer	I-Application
.	O
</s>
<s>
Linux	B-Operating_System
XP	I-Operating_System
had	O
to	O
be	O
registered	O
within	O
99	O
startups	O
after	O
installation	O
,	O
or	O
the	O
OS	O
would	O
deactivate	O
.	O
</s>
