<s>
Web	B-Application
Services	I-Application
Enhancements	I-Application
(	O
WSE	O
)	O
is	O
an	O
obsolete	O
add-on	O
to	O
the	O
Microsoft	B-Application
.NET	I-Application
Framework	I-Application
,	O
which	O
includes	O
a	O
set	O
of	O
classes	O
that	O
implement	O
additional	O
WS-*	O
web	O
service	O
specifications	O
chiefly	O
in	O
areas	O
such	O
as	O
security	O
,	O
reliable	O
messaging	O
,	O
and	O
sending	O
attachments	O
.	O
</s>
<s>
Web	O
services	O
communicate	O
via	O
either	O
SOAP	B-Application
or	O
REST	B-Protocol
messages	O
.	O
</s>
<s>
WSE	O
provides	O
extensions	O
to	O
the	O
SOAP	B-Application
protocol	O
and	O
allows	O
the	O
definition	O
of	O
custom	O
security	O
,	O
reliable	O
messaging	O
,	O
policy	O
,	O
etc	O
.	O
</s>
<s>
WSE	O
has	O
been	O
replaced	O
by	O
Windows	B-Application
Communication	I-Application
Foundation	I-Application
(	O
WCF	B-Application
)	O
.	O
</s>
<s>
WSE	B-Application
1.0	I-Application
for	O
.NET	B-Application
Framework	I-Application
1.0	O
was	O
released	O
in	O
December	O
2002	O
.	O
</s>
<s>
It	O
is	O
not	O
supported	O
anymore	O
and	O
is	O
not	O
compatible	O
with	O
.NET	B-Application
2.0	O
.	O
</s>
<s>
WSE	B-Application
2.0	I-Application
was	O
released	O
for	O
Visual	O
Studio	O
.NET	B-Application
2003	O
and	O
the	O
.NET	B-Application
Framework	I-Application
1.1	O
in	O
May	O
2004	O
.	O
</s>
<s>
It	O
introduced	O
major	O
secure	O
communication	O
improvements	O
(	O
signing	O
and	O
encryption	O
of	O
user-defined	O
SOAP	B-Application
headers	O
,	O
Kerberos	O
Security	O
Context	O
Tokens	O
,	O
delegated	O
trust	O
etc	O
.	O
</s>
<s>
)	O
,	O
a	O
new	O
lightweight	O
messaging	O
infrastructure	O
,	O
a	O
new	O
programming	O
model	O
,	O
support	O
for	O
SOAP	B-Application
based	O
messaging	O
over	O
TCP	O
as	O
an	O
alternative	O
to	O
HTTP	O
,	O
a	O
policy	O
framework	O
based	O
on	O
WS-Policy	O
and	O
WSDL	O
,	O
WS-Addressing	O
,	O
WS-Trust	O
,	O
WS-SecureConversation	O
support	O
.	O
</s>
<s>
WSE	B-Application
2.0	I-Application
can	O
be	O
used	O
from	O
within	O
standalone	O
executables	O
and	O
Windows	O
services	O
i.e.	O
</s>
<s>
outside	O
IIS	B-Application
in	O
addition	O
to	O
ASP.NET	B-Application
applications	O
.	O
</s>
<s>
It	O
is	O
also	O
compatible	O
with	O
.NET	B-Application
2.0	O
,	O
however	O
it	O
does	O
not	O
have	O
design	O
time	O
support	O
with	O
Visual	O
Studio	O
2005	O
.	O
</s>
<s>
It	O
is	O
not	O
interoperable	O
with	O
WSE	B-Application
3.0	I-Application
and	O
WCF	B-Application
.	O
</s>
<s>
WSE	B-Application
3.0	I-Application
was	O
released	O
in	O
October	O
2005	O
and	O
has	O
design	O
time	O
support	O
with	O
Visual	O
Studio	O
2005	O
.	O
</s>
<s>
when	O
a	O
service	O
's	O
appdomain	B-Architecture
is	O
reset	O
.	O
</s>
<s>
WSE	B-Application
3.0	I-Application
is	O
wire-level	O
interoperable	O
over	O
HTTP	O
with	O
Windows	B-Application
Communication	I-Application
Foundation	I-Application
(	O
WCF	B-Application
)	O
and	O
supports	O
the	O
same	O
version	O
of	O
the	O
WS-*	O
specifications	O
as	O
WCF	B-Application
(	O
WS-Security	O
1.1	O
,	O
SOAP	B-Application
1.2	O
,	O
MTOM	O
)	O
.	O
</s>
<s>
WSE	O
stopped	O
receiving	O
updates	O
,	O
as	O
the	O
latest	O
version	O
(	O
WSE	B-Application
3.0	I-Application
)	O
was	O
supported	O
with	O
the	O
(	O
whose	O
support	O
ended	O
on	O
July	O
12	O
,	O
2011	O
)	O
.	O
</s>
<s>
WCF	B-Application
provides	O
the	O
equivalent	O
functionality	O
.	O
</s>
