<s>
Cisco	B-Protocol
Systems	I-Protocol
VPN	I-Protocol
Client	I-Protocol
is	O
a	O
software	O
application	O
for	O
connecting	O
to	O
virtual	B-Application
private	I-Application
networks	I-Application
based	O
on	O
Internet	O
Key	O
Exchange	O
version	O
1	O
.	O
</s>
<s>
The	O
open-source	O
can	O
connect	O
to	O
most	O
VPNs	B-Application
supported	O
by	O
the	O
official	O
client	O
.	O
</s>
<s>
VPN	B-Application
Client	I-Application
4.9.01.0230	O
beta	O
added	O
support	O
for	O
Mac	O
OS	O
X	O
10.6	O
.	O
</s>
<s>
Stable	O
version	O
4.9.01.0180	O
appears	O
to	O
lack	O
that	O
support	O
;	O
4.9.00.0050	O
explicitly	O
did	O
not	O
support	O
versions	O
of	O
Mac	O
OS	O
X	O
later	O
than	O
10.5	B-Application
.	O
</s>
<s>
VPN	B-Application
Client	I-Application
5.0.07.0290	O
added	O
support	O
for	O
64-bit	O
versions	O
of	O
Windows	O
Vista	O
and	O
Windows	B-Device
7	I-Device
.	O
</s>
<s>
The	O
client	O
uses	O
profile	B-Protocol
configuration	I-Protocol
files	I-Protocol
(	O
.pcf	O
)	O
that	O
store	O
VPN	B-Application
passwords	O
either	O
hashed	B-Algorithm
with	O
type	O
7	O
,	O
or	O
stored	O
as	O
plaintext	O
.	O
</s>
