<s>
UWIN	B-Application
is	O
a	O
computer	B-Application
software	I-Application
package	O
created	O
by	O
David	O
Korn	O
which	O
allows	O
programs	B-Application
written	O
for	O
the	O
operating	B-General_Concept
system	I-General_Concept
Unix	B-Application
to	O
be	O
built	O
and	O
run	O
on	O
Microsoft	B-Application
Windows	I-Application
with	O
few	O
,	O
if	O
any	O
,	O
changes	O
.	O
</s>
<s>
Some	O
of	O
the	B-Application
software	I-Application
development	O
was	O
subcontracted	O
to	O
Wipro	O
,	O
India	O
.	O
</s>
<s>
References	O
,	O
correct	O
or	O
not	O
,	O
to	O
the	B-Application
software	I-Application
as	O
U/Win	O
and	O
AT&T	O
Unix	B-Application
for	O
Windows	O
can	O
be	O
found	O
in	O
some	O
cases	O
,	O
especially	O
from	O
the	O
early	O
days	O
of	O
its	O
existence	O
.	O
</s>
<s>
UWIN	B-Application
source	O
is	O
available	O
under	O
the	O
Open	B-License
Source	I-License
Eclipse	B-License
Public	I-License
License	I-License
1.0	O
at	O
T	O
's	O
/	O
repositories	O
on	O
GitHub	O
.	O
</s>
<s>
UWIN	B-Application
5	O
is	O
distributed	O
with	O
the	O
FireCMD	O
enhanced	O
Windows	O
shell	O
with	O
the	O
Korn	O
Shell	O
thereof	O
as	O
one	O
of	O
three	O
default	O
shells	O
present	O
at	O
install	O
,	O
the	O
others	O
being	O
the	O
FireCMD	O
scripting	O
language	O
and	O
the	O
default	O
Windows	O
command	O
shell	O
cmd.exe	B-Device
.	O
</s>
<s>
Other	O
UWIN	B-Application
shells	O
like	O
csh	B-Operating_System
and	O
tclsh	O
and	O
those	O
of	O
other	O
interoperability	O
suites	O
like	O
the	O
MKS	B-Application
Toolkit	I-Application
and	O
other	O
shells	O
like	O
those	O
that	O
come	O
with	O
Tcl	B-Operating_System
,	O
Lua	B-Language
,	O
Python	B-Language
and	O
Ruby	B-Language
distributions	O
inter	O
alia	O
can	O
be	O
added	O
to	O
the	O
menu	O
by	O
the	O
user/administrator	O
.	O
</s>
<s>
Technically	O
,	O
it	O
is	O
an	O
X/Open	O
library	B-Library
for	O
the	O
Windows	O
32-bit	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
,	O
called	O
Win32	B-Library
.	O
</s>
<s>
UWIN	B-Application
contains	O
:	O
</s>
<s>
Include	O
files	O
and	O
development	O
tools	O
such	O
as	O
cc(1 )	O
,	O
yacc(1 )	O
,	O
lex(1 )	O
,	O
and	O
make(1 )	O
.	O
</s>
<s>
ksh(1 )	O
(	O
the	O
Korn	O
Shell	O
)	O
and	O
over	O
250	O
utilities	O
such	O
as	O
ls(1 )	O
,	O
sed(1 )	O
,	O
cp(1 )	O
,	O
stty(1 )	O
,	O
etc	O
.	O
</s>
<s>
Most	O
of	O
the	O
Unix	B-Application
API	B-Application
is	O
implemented	O
by	O
the	O
POSIX.DLL	O
dynamically	O
loaded	O
(	O
shared	O
)	O
library	B-Library
.	O
</s>
<s>
Programs	B-Application
linked	O
with	O
POSIX.DLL	O
run	O
under	O
the	O
Win32	B-Library
subsystem	O
instead	O
of	O
the	O
POSIX	O
subsystem	O
,	O
so	O
programs	B-Application
can	O
freely	O
intermix	O
Unix	B-Application
and	O
Win32	B-Library
library	B-Library
calls	O
.	O
</s>
<s>
A	O
cc(1 )	O
command	O
is	O
provided	O
to	O
compile	O
and	O
link	O
programs	B-Application
for	O
UWIN	B-Application
on	O
Windows	O
using	O
traditional	B-Application
Unix	I-Application
build	O
tools	O
such	O
as	O
make(1 )	O
.	O
</s>
<s>
It	O
can	O
be	O
used	O
with	O
the	O
Microsoft	O
Visual	O
C/C	O
++	O
5.X	O
compiler	O
,	O
the	O
Visual	O
C/C	O
++	O
6.X	O
compiler	O
,	O
the	O
Visual	O
C/C	O
++	O
7.X	O
compiler	O
,	O
the	O
Digital	B-Language
Mars	I-Language
C/C	O
++	O
compiler	O
,	O
the	O
Borland	O
C/C	O
++	O
compiler	O
,	O
and	O
the	O
MinGW	B-Application
compiler	O
.	O
</s>
<s>
The	O
GNU	O
compiler	O
and	O
development	O
tools	O
are	O
also	O
available	O
for	O
download	O
to	O
UWIN	B-Application
.	O
</s>
<s>
UWIN	B-Application
runs	O
best	O
on	O
Windows	O
NT/2000/XP/7	O
with	O
the	O
file	B-Application
system	I-Application
NTFS	B-Application
,	O
but	O
can	O
run	O
in	O
degraded	O
mode	O
using	O
FAT	B-Application
,	O
and	O
further	O
degraded	O
on	O
Windows	O
95/98/ME	O
.	O
</s>
<s>
A	O
beta	O
version	O
for	O
Windows	O
Vista	O
and	O
7	O
is	O
released	O
as	O
UWin	B-Application
5.0b	O
(	O
June	O
2011	O
,	O
17th	O
)	O
.	O
</s>
<s>
On	O
January	O
19	O
,	O
2016	O
,	O
it	O
was	O
announced	O
by	O
AT&T	O
that	O
the	O
AST	O
and	O
UWIN	B-Application
source	O
packages	O
were	O
migrated	O
to	O
GitHub	O
.	O
</s>
