<s>
SoftEther	B-Operating_System
Corporation	I-Operating_System
is	O
a	O
Japanese	O
software	O
company	O
.	O
</s>
<s>
It	O
was	O
founded	O
as	O
an	O
industry-academia-government	O
venture	O
in	O
April	O
2004	O
by	O
University	O
of	O
Tsukuba	O
students	O
,	O
with	O
the	O
goal	O
to	O
develop	O
the	O
software	O
of	O
the	O
same	O
name	O
,	O
SoftEther	B-Application
VPN	I-Application
.	O
</s>
<s>
The	O
VPN	B-Application
software	O
called	O
SoftEther	B-Application
(	O
SoftEther	B-Application
1.0	O
)	O
was	O
written	O
by	O
Daiyu	O
Nobori	O
,	O
who	O
became	O
the	O
Representative	O
Director	O
and	O
Chairman	O
of	O
the	O
new	O
company	O
.	O
</s>
<s>
The	O
first	O
SoftEther	B-Application
sales	O
version	O
was	O
released	O
in	O
August	O
2004	O
called	O
SoftEther	B-Application
CA	O
,	O
by	O
Mitsubishi	O
Materials	O
Corporation	O
,	O
Japan	O
.	O
</s>
<s>
The	O
second	O
version	O
of	O
the	O
software	O
,	O
released	O
in	O
December	O
2005	O
,	O
the	O
name	O
of	O
the	O
software	O
was	O
changed	O
to	O
PacketiX	B-Operating_System
VPN	I-Operating_System
2.0	O
from	O
SoftEther	B-Application
2.0	O
.	O
</s>
<s>
In	O
2006	O
,	O
PacketiX	B-Operating_System
VPN	I-Operating_System
2.0	O
won	O
the	O
"	O
Software	O
of	O
the	O
Year	O
"	O
award	O
from	O
the	O
Information-Technology	O
Promotion	O
Agency	O
.	O
</s>
<s>
In	O
2010	O
March	O
,	O
PacketiX	B-Operating_System
VPN	I-Operating_System
3.0	O
was	O
released	O
by	O
Softether	B-Operating_System
Corporation	I-Operating_System
.	O
</s>
<s>
This	O
version	O
is	O
compatible	O
with	O
PacketiX	B-Operating_System
VPN	I-Operating_System
2.0	O
.	O
</s>
<s>
In	O
2013	O
July	O
,	O
PacketiX	B-Operating_System
VPN	I-Operating_System
4.0	O
was	O
released	O
by	O
SoftEther	B-Operating_System
Corporation	I-Operating_System
.	O
</s>
<s>
In	O
2010	O
June	O
,	O
UT-VPN	B-Protocol
was	O
released	O
by	O
SoftEther	B-Operating_System
Corporation	I-Operating_System
and	O
University	O
of	O
Tsukuba	O
.	O
</s>
<s>
UT-VPN	B-Protocol
is	O
an	O
open	O
source	O
VPN	B-Application
software	O
.	O
</s>
<s>
UT-VPN	B-Protocol
has	O
compatible	O
as	O
PacketiX	B-Operating_System
VPN	I-Operating_System
products	O
of	O
SoftEther	B-Operating_System
Corporation	I-Operating_System
.	O
</s>
<s>
UT-VPN	B-Protocol
developed	O
based	O
on	O
PacketiX	B-Operating_System
VPN	I-Operating_System
3.0	O
,	O
but	O
some	O
functions	O
was	O
deleted	O
.	O
</s>
<s>
For	O
example	O
,	O
the	O
RADIUS	O
client	O
is	O
supported	O
by	O
PacketiX	B-Operating_System
VPN	I-Operating_System
Server	O
,	O
but	O
it	O
is	O
not	O
supported	O
by	O
UT-VPN	B-Protocol
Server	O
.	O
</s>
<s>
In	O
2013	O
July	O
,	O
SoftEther	B-Application
VPN	I-Application
was	O
released	O
by	O
SoftEther	B-Application
VPN	I-Application
Project	O
with	O
SoftEther	B-Operating_System
Corporation	I-Operating_System
and	O
University	O
of	O
Tsukuba	O
.	O
</s>
<s>
SoftEther	B-Application
VPN	I-Application
1.0	O
developed	O
based	O
on	O
PacketiX	B-Operating_System
VPN	I-Operating_System
4.0	O
.	O
</s>
<s>
Compatibility	O
and	O
the	O
restrictions	O
of	O
functions	O
follow	O
UT-VPN	B-Protocol
.	O
</s>
<s>
On	O
January	O
4	O
,	O
2014	O
,	O
SoftEther	B-Application
VPN	I-Application
announced	O
that	O
the	O
source	O
code	O
of	O
SoftEther	B-Application
VPN	I-Application
was	O
released	O
as	O
open-source	O
software	O
under	O
the	O
GPLv2	O
license	O
.	O
</s>
<s>
SoftEther	B-Application
VPN	I-Application
is	O
the	O
underlying	O
VPN	B-Application
engine	O
of	O
VPN	B-Application
Gate	O
.	O
</s>
