<s>
AOL	B-Application
Active	I-Application
Virus	I-Application
Shield	I-Application
(	O
commonly	O
referred	O
to	O
as	O
AVS	O
)	O
was	O
a	O
free	O
antivirus	B-Application
utility	O
made	O
available	O
by	O
AOL	O
.	O
</s>
<s>
Its	O
engine	O
was	O
based	O
on	O
the	O
one	O
used	O
by	O
Kaspersky	B-Application
Anti-Virus	I-Application
.	O
</s>
<s>
Active	B-Application
Virus	I-Application
Shield	I-Application
includes	O
numerous	O
features	O
found	O
in	O
Kaspersky	B-Application
Anti-Virus	I-Application
.	O
</s>
<s>
The	O
software	O
's	O
main	O
feature	O
is	O
malware	O
scanning	O
,	O
which	O
uses	O
Kaspersky	B-Application
's	O
underlying	O
engine	O
and	O
detects	O
a	O
variety	O
of	O
malware	O
such	O
as	O
viruses	O
,	O
spyware	O
,	O
and	O
even	O
joke	O
programs	O
.	O
</s>
<s>
The	O
latest	O
version	O
of	O
Active	B-Application
Virus	I-Application
Shield	I-Application
(	O
version	O
6.0.2.621	O
)	O
supports	O
Windows	B-Application
Vista	I-Application
.	O
</s>
<s>
Active	B-Application
Virus	I-Application
Shield	I-Application
is	O
light	O
compared	O
to	O
other	O
commercial	O
anti-virus	B-Application
products	I-Application
.	O
</s>
<s>
The	O
program	O
also	O
benefits	O
from	O
Kaspersky	B-Application
's	O
regular	O
definition	O
updates	O
,	O
typically	O
around	O
every	O
two	O
hours	O
,	O
which	O
enable	O
new	O
viruses	O
to	O
be	O
more	O
effectively	O
detected	O
than	O
programs	O
that	O
update	O
less	O
regularly	O
.	O
</s>
<s>
In	O
addition	O
,	O
Active	B-Application
Virus	I-Application
Shield	I-Application
has	O
better	O
detection	O
rates	O
than	O
other	O
free	O
programs	O
such	O
as	O
AVG	O
Free	O
and	O
avast	O
!	O
</s>
<s>
Active	B-Application
Virus	I-Application
Shield	I-Application
does	O
lack	O
some	O
features	O
of	O
Kaspersky	B-Application
6.0	O
(	O
such	O
as	O
proactive	O
protection	O
and	O
HTTP	B-Protocol
protection	O
)	O
,	O
and	O
the	O
license	O
provided	O
is	O
only	O
valid	O
for	O
one	O
year	O
,	O
although	O
the	O
same	O
email	O
address	O
as	O
used	O
initially	O
can	O
easily	O
be	O
used	O
to	O
renew	O
it	O
up	O
to	O
10	O
times	O
.	O
</s>
<s>
Some	O
users	O
have	O
also	O
reported	O
compatibility	O
problems	O
with	O
certain	O
applications	O
such	O
as	O
McAfee	O
Personal	O
Firewall	O
Plus	O
,	O
ZoneAlarm	B-Protocol
and	O
Logitech	O
products	O
.	O
</s>
<s>
Active	B-Application
Virus	I-Application
Shield	I-Application
is	O
no	O
longer	O
available	O
for	O
download	O
as	O
of	O
August	O
1	O
,	O
2007	O
.	O
</s>
<s>
Even	O
though	O
Active	B-Application
Virus	I-Application
Shield	I-Application
is	O
no	O
longer	O
available	O
officially	O
,	O
the	O
latest	O
version	O
of	O
the	O
program	O
can	O
still	O
be	O
obtained	O
from	O
the	O
mirror	O
server	O
that	O
it	O
is	O
hosted	O
on	O
.	O
</s>
