<s>
Interix	B-Operating_System
was	O
an	O
optional	O
,	O
POSIX-conformant	O
Unix	B-Application
subsystem	O
for	O
Windows	B-Device
NT	I-Device
operating	B-General_Concept
systems	I-General_Concept
.	O
</s>
<s>
Interix	B-Operating_System
was	O
a	O
component	O
of	O
Windows	O
Services	O
for	O
UNIX	B-Application
,	O
and	O
a	O
superset	O
of	O
the	O
Microsoft	B-Device
POSIX	I-Device
subsystem	I-Device
.	O
</s>
<s>
Like	O
the	O
POSIX	O
subsystem	O
,	O
Interix	B-Operating_System
was	O
an	O
environment	O
subsystem	O
for	O
the	O
NT	O
kernel	O
.	O
</s>
<s>
It	O
included	O
numerous	O
open	B-License
source	I-License
utility	B-Application
software	I-Application
programs	O
and	O
libraries	B-Library
.	O
</s>
<s>
Interix	B-Operating_System
was	O
originally	O
developed	O
and	O
sold	O
as	O
OpenNT	B-Operating_System
until	O
purchased	O
by	O
Microsoft	O
in	O
1999	O
.	O
</s>
<s>
Interix	B-Operating_System
versions	O
5.2	O
and	O
6.0	O
were	O
respective	O
components	O
of	O
Microsoft	B-Application
Windows	I-Application
Server	O
2003	O
R2	O
,	O
Windows	B-Application
Vista	I-Application
Enterprise	O
,	O
Windows	B-Application
Vista	I-Application
Ultimate	O
,	O
and	O
Windows	B-Device
Server	I-Device
2008	I-Device
as	O
Subsystem	B-Operating_System
for	I-Operating_System
Unix-based	I-Operating_System
Applications	I-Operating_System
(	O
SUA	O
)	O
.	O
</s>
<s>
Version	O
6.1	O
was	O
included	O
in	O
Windows	B-Device
7	I-Device
(	O
Enterprise	O
and	O
Ultimate	O
editions	O
)	O
but	O
disabled	O
by	O
default	O
,	O
and	O
in	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
(	O
all	O
editions	O
)	O
.	O
</s>
<s>
It	O
was	O
available	O
as	O
a	O
deprecated	O
separate	O
download	O
for	O
Windows	B-Application
8	I-Application
and	O
Windows	B-Device
Server	I-Device
2012	I-Device
,	O
and	O
is	O
not	O
available	O
at	O
all	O
on	O
Windows	B-Operating_System
10	I-Operating_System
.	O
</s>
<s>
The	O
complete	O
installation	O
of	O
Interix	B-Operating_System
included	O
(	O
at	O
version	O
3.5	O
)	O
:	O
</s>
<s>
Over	O
350	O
Unix	B-Application
utilities	I-Application
such	O
as	O
vi	B-Application
,	O
ksh	B-Language
,	O
csh	B-Operating_System
,	O
ls	B-Application
,	O
cat	B-Device
,	O
awk	B-Application
,	O
grep	B-Application
,	O
kill	B-Operating_System
,	O
etc	O
.	O
</s>
<s>
Has	O
Unix	B-Application
"	O
root	B-Operating_System
"	O
capabilities	O
(	O
i.e.	O
</s>
<s>
The	O
development	O
environment	O
included	O
support	O
for	O
C	B-Language
,	O
C++	B-Language
and	O
Fortran	B-Application
.	O
</s>
<s>
Threading	O
was	O
supported	O
using	O
the	O
Pthreads	B-Operating_System
model	O
.	O
</s>
<s>
Additional	O
languages	O
could	O
be	O
obtained	O
(	O
Python	B-Language
,	O
Ruby	B-Language
,	O
Tcl	B-Operating_System
,	O
etc	O
.	O
)	O
.	O
</s>
<s>
Unix-based	O
software	O
packaging	O
and	O
build	O
tools	O
were	O
available	O
for	O
installing	O
or	O
creating	O
pre-build	O
software	O
packages	O
.	O
</s>
<s>
With	O
release	O
6.0	O
(	O
Vista	B-Application
and	O
Server	B-Device
2008	I-Device
)	O
the	O
following	O
new	O
features	O
were	O
added	O
:	O
</s>
<s>
Interix	B-Operating_System
release	O
6.0	O
for	O
Vista	B-Application
was	O
only	O
available	O
with	O
the	O
Ultimate	O
and	O
Enterprise	O
editions	O
.	O
</s>
<s>
Interix	B-Operating_System
release	O
6.1	O
was	O
available	O
for	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
and	O
Windows	B-Device
7	I-Device
for	O
the	O
Enterprise	O
and	O
Ultimate	O
editions	O
.	O
</s>
<s>
Additional	O
pre-built	O
applications	O
and	O
development	O
libraries	B-Library
could	O
be	O
obtained	O
for	O
free	O
from	O
the	O
site	O
,	O
the	O
site	O
and	O
the	O
site	O
.	O
</s>
<s>
These	O
included	O
commonly	O
used	O
applications	O
not	O
part	O
of	O
the	O
Microsoft	O
installation	O
such	O
as	O
OpenSSH	B-Language
,	O
Git	B-Application
,	O
Python	B-Language
and	O
bash	B-Operating_System
.	O
</s>
<s>
The	O
SUA	O
Community	O
site	O
included	O
for	O
developers	O
of	O
Interix	B-Operating_System
and	O
the	O
site	O
has	O
been	O
contracted	O
by	O
Microsoft	O
for	O
several	O
Interix	B-Operating_System
and	O
SUA	O
updates	O
of	O
utilities	O
and	O
documentation	O
.	O
</s>
<s>
This	O
product	O
began	O
to	O
be	O
developed	O
in	O
1996	O
under	O
the	O
product	O
name	O
OpenNT	B-Operating_System
by	O
Softway	B-Operating_System
Systems	I-Operating_System
,	O
Inc	O
.	O
before	O
the	O
name	O
was	O
changed	O
to	O
Interix	B-Operating_System
in	O
1998	O
.	O
</s>
<s>
The	O
last	O
release	O
by	O
Softway	B-Operating_System
Systems	I-Operating_System
was	O
release	O
2.2	O
.	O
</s>
<s>
Softway	B-Operating_System
Systems	I-Operating_System
had	O
virtually	O
completed	O
the	O
next	O
release	O
code-named	O
Firebrand	O
in	O
1999	O
which	O
became	O
the	O
basis	O
of	O
Interix	B-Operating_System
3.0	O
.	O
</s>
<s>
The	O
Interix	B-Operating_System
interoperability	O
suite	O
developed	O
by	O
Softway	B-Operating_System
Systems	I-Operating_System
Inc.	O
,	O
included	O
substantial	O
code	O
from	O
OpenBSD	B-Operating_System
,	O
.	O
</s>
<s>
Microsoft	O
acquired	O
Interix	B-Operating_System
in	O
1999	O
.	O
</s>
<s>
Microsoft	O
continued	O
to	O
distribute	O
Interix	B-Operating_System
2.2	O
as	O
a	O
standalone	O
product	O
until	O
2002	O
.	O
</s>
<s>
Interix	B-Operating_System
release	O
3.0	O
was	O
released	O
as	O
component	O
of	O
Windows	O
Services	O
for	O
Unix	B-Application
(	O
SFU	O
)	O
3.0	O
in	O
2002	O
.	O
</s>
<s>
Interix	B-Operating_System
release	O
3.5	O
was	O
released	O
as	O
component	O
of	O
SFU	O
3.5	O
in	O
January	O
,	O
2004	O
.	O
</s>
<s>
Interix	B-Operating_System
became	O
integrated	O
as	O
a	O
component	O
of	O
the	O
regular	O
Windows	B-Application
OS	I-Application
distribution	O
as	O
a	O
component	O
of	O
Windows	O
Server	O
2003	O
R2	O
in	O
December	O
,	O
2005	O
at	O
release	O
5.2	O
and	O
was	O
a	O
component	O
of	O
the	O
Windows	B-Application
Vista	I-Application
release	O
as	O
release	O
6.0	O
(	O
RTM	O
November	O
,	O
2006	O
)	O
.	O
</s>
<s>
Windows	B-Device
Server	I-Device
2008	I-Device
had	O
release	O
6.0	O
.	O
</s>
<s>
Windows	B-Device
7	I-Device
and	O
Windows	B-Device
Server	I-Device
2008	I-Device
R2	I-Device
included	O
SUA	O
6.1	O
.	O
</s>
<s>
Microsoft	O
announced	O
in	O
2011	O
that	O
Interix	B-Operating_System
would	O
not	O
be	O
included	O
in	O
Windows	O
versions	O
after	O
Windows	B-Application
8	I-Application
and	O
customers	O
should	O
start	O
migrating	O
their	O
applications	O
to	O
an	O
alternative	O
solution	O
.	O
</s>
<s>
1998-06	O
Interix	B-Operating_System
2.2( .0 )	O
?	O
</s>
