<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
is	O
a	O
discontinued	O
HTML	B-General_Concept
editor	I-General_Concept
and	O
general	O
web	O
design	O
software	O
product	O
by	O
Microsoft	O
.	O
</s>
<s>
It	O
was	O
a	O
component	O
of	O
the	O
also	O
discontinued	O
Expression	B-Application
Studio	I-Application
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
can	O
design	O
and	O
develop	O
web	O
pages	O
using	O
HTML5	B-Application
,	O
CSS	B-Language
3	I-Language
,	O
ASP.NET	B-Application
,	O
PHP	B-Application
,	O
JavaScript	B-Language
,	O
XML+XSLT	O
and	O
XHTML	B-Language
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
4	O
requires	O
.NET	B-Application
Framework	I-Application
4.0	O
and	O
Silverlight	B-Application
4.0	O
to	O
install	O
and	O
run	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
uses	O
its	O
own	O
standards-based	O
rendering	O
engine	O
which	O
is	O
different	O
from	O
Internet	O
Explorer	O
's	O
Trident	B-Application
engine	O
.	O
</s>
<s>
On	O
May	O
14	O
,	O
2006	O
,	O
Microsoft	O
released	O
the	O
first	O
Community	O
Technology	O
Preview	O
(	O
CTP	O
)	O
version	O
of	O
Expression	B-Application
Web	I-Application
,	O
code-named	O
Quartz	O
.	O
</s>
<s>
Beta	O
1	O
removed	O
most	O
of	O
the	O
FrontPage-proprietary	O
(	O
non-standard	O
)	O
features	O
such	O
as	O
bots	O
(	O
use	O
of	O
FPSE	O
features	O
for	O
server-side	O
scripting	O
)	O
,	O
parts	O
,	O
functions	O
,	O
themes	O
,	O
automatic	O
generation	O
of	O
navigation	O
buttons	O
,	O
FrontPage	B-Operating_System
forms	O
,	O
navigation	O
pane	O
to	O
build	O
a	O
web	O
site	O
's	O
hierarchy	O
,	O
and	O
other	O
non-standard	O
features	O
available	O
in	O
CTP	O
1	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
does	O
not	O
have	O
the	O
form	O
validation	O
controls	O
for	O
HTML	O
fields	O
like	O
FrontPage	B-Operating_System
,	O
but	O
supports	O
validator	O
controls	O
for	O
ASP.NET	B-Application
.	O
</s>
<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
2	O
was	O
released	O
in	O
2008	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
2	O
offers	O
native	O
support	O
for	O
PHP	B-Application
and	O
Silverlight	B-Application
.	O
</s>
<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
3	O
was	O
released	O
in	O
2009	O
.	O
</s>
<s>
Until	O
version	O
2	O
,	O
Expression	B-Application
Web	I-Application
was	O
the	O
only	O
application	O
in	O
the	O
Expression	B-Application
Studio	I-Application
suite	O
based	O
on	O
Microsoft	B-Application
Office	I-Application
code	O
and	O
dependencies	O
.	O
</s>
<s>
With	O
version	O
3	O
,	O
Expression	B-Application
Web	I-Application
was	O
rewritten	O
in	O
Windows	B-Device
Presentation	I-Device
Foundation	I-Device
,	O
in	O
line	O
with	O
the	O
rest	O
of	O
the	O
Expression	O
Suite	O
,	O
without	O
Microsoft	B-Application
Office	I-Application
dependencies	O
.	O
</s>
<s>
Version	O
3	O
introduced	O
Expression	B-Application
Web	I-Application
3	O
SuperPreview	O
tool	O
for	O
comparing	O
and	O
rendering	O
webpage	O
in	O
various	O
browsers	O
.	O
</s>
<s>
This	O
feature	O
was	O
added	O
with	O
Expression	B-Application
Web	I-Application
3	O
Service	O
Pack	O
1	O
,	O
released	O
in	O
November	O
2009	O
.	O
</s>
<s>
Service	O
Pack	O
2	O
for	O
Expression	B-Application
Web	I-Application
3	O
was	O
released	O
in	O
April	O
2010	O
.	O
</s>
<s>
Service	O
Pack	O
3	O
for	O
Expression	B-Application
Web	I-Application
3	O
was	O
released	O
in	O
October	O
2011	O
and	O
includes	O
general	O
product	O
,	O
stability	O
,	O
performance	O
,	O
and	O
security	O
fixes	O
.	O
</s>
<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
4	O
was	O
released	O
on	O
June	O
7	O
,	O
2010	O
.	O
</s>
<s>
It	O
added	O
the	O
option	O
of	O
HTML	O
add-ins	O
,	O
and	O
access	O
to	O
a	O
web-based	O
SuperPreview	O
functionality	O
,	O
for	O
testing	O
pages	O
on	O
browsers	O
that	O
cannot	O
be	O
installed	O
on	O
the	O
user	O
's	O
system	O
(	O
such	O
as	O
Mac	B-Operating_System
OS	I-Operating_System
X	I-Operating_System
or	O
Linux	B-Application
browsers	O
)	O
.	O
</s>
<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
4	O
also	O
provides	O
an	O
SEO	O
Checker	O
which	O
analyzes	O
produced	O
web	O
site	O
against	O
the	O
best	O
practices	O
for	O
getting	O
the	O
highest	O
possible	O
search-engine	O
rankings	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
4	O
Service	O
Pack	O
1	O
was	O
released	O
in	O
March	O
2011	O
and	O
added	O
support	O
for	O
IntelliSense	B-Application
for	O
the	O
HTML5	B-Application
and	O
CSS3	O
draft	O
specifications	O
in	O
the	O
Code	O
editor	O
,	O
HTML5	B-Application
and	O
CSS3	O
support	O
in	O
the	O
CSS	B-Language
Properties	O
palette	O
,	O
selected	O
CSS3	O
properties	O
in	O
the	O
Style	O
dialogs	O
,	O
semantic	O
HTML5	B-Application
tags	O
in	O
Design	O
View	O
and	O
new	O
PHP	B-Application
5.3	O
functions	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
4	O
SP2	O
was	O
released	O
in	O
July	O
2011	O
,	O
and	O
fixed	O
a	O
number	O
of	O
issues	O
and	O
introduced	O
new	O
features	O
such	O
as	O
jQuery	B-Language
IntelliSense	B-Application
support	O
,	O
a	O
panel	O
for	O
managing	O
snippets	O
,	O
Interactive	O
Snapshot	O
Panel	O
,	O
comment/uncomment	O
functionality	O
in	O
Code	O
View	O
,	O
and	O
workspace	O
and	O
toolbar	O
customization	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
4	O
SP2a	O
,	O
an	O
hotfix	O
released	O
in	O
October	O
2011	O
,	O
fixes	O
an	O
issue	O
caused	O
by	O
corruption	O
in	O
the	O
license	O
store	O
.	O
</s>
<s>
As	O
of	O
December	O
,	O
2012	O
,	O
Microsoft	O
has	O
announced	O
that	O
Expression	B-Application
Studio	I-Application
will	O
no	O
longer	O
be	O
a	O
stand-alone	O
product	O
.	O
</s>
<s>
Expression	B-Application
Blend	I-Application
is	O
being	O
integrated	O
into	O
Visual	B-Application
Studio	I-Application
,	O
while	O
Expression	B-Application
Web	I-Application
and	O
Expression	B-Application
Design	I-Application
will	O
now	O
be	O
free	O
products	O
.	O
</s>
<s>
Technical	O
support	O
is	O
available	O
for	O
customers	O
who	O
purchased	O
Expression	B-Application
Web	I-Application
or	O
Expression	B-Application
Design	I-Application
following	O
their	O
published	O
support	O
lifetime	O
guides	O
,	O
while	O
no	O
support	O
will	O
be	O
offered	O
to	O
free	O
downloaders	O
.	O
</s>
<s>
No	O
new	O
versions	O
of	O
Expression	B-Application
Web	I-Application
or	O
Design	O
are	O
planned	O
.	O
</s>
<s>
Microsoft	B-Application
Expression	I-Application
Web	I-Application
received	O
positive	O
reviews	O
.	O
</s>
<s>
PC	O
Pro	O
awarded	O
Expression	B-Application
Web	I-Application
2	O
five	O
stars	O
out	O
of	O
six	O
.	O
</s>
<s>
"	O
It	O
largely	O
succeeded	O
by	O
concentrating	O
on	O
providing	O
standards-compliant	O
support	O
for	O
the	O
web	O
's	O
core	O
markup	O
languages	O
,	O
(	O
X	O
)	O
HTML	O
and	O
CSS	B-Language
,	O
"	O
Tom	O
Arah	O
concluded	O
.	O
</s>
<s>
PC	O
Magazine	O
also	O
rated	O
Expression	B-Application
Web	I-Application
2	O
with	O
4	O
stars	O
out	O
of	O
5	O
and	O
labeled	O
it	O
as	O
a	O
more	O
cost-effective	O
option	O
compared	O
to	O
the	O
main	O
competitor	O
,	O
Adobe	B-Language
Dreamweaver	I-Language
.	O
</s>
<s>
"	O
Even	O
if	O
money	O
is	O
no	O
object	O
,	O
Expression	B-Application
Web	I-Application
2	O
might	O
be	O
your	O
better	O
choice	O
,	O
"	O
editor	O
Edward	O
Mendelson	O
wrote	O
.	O
</s>
<s>
However	O
,	O
PC	O
Magazine	O
criticized	O
a	O
lack	O
of	O
"	O
Secure	B-Protocol
FTP	I-Protocol
in	O
its	O
Web-publishing	O
functions	O
"	O
and	O
"	O
the	O
ability	O
to	O
create	O
browser-based	O
(	O
as	O
opposed	O
to	O
server-based	O
)	O
scripting	O
of	O
dynamic	O
pages	O
that	O
works	O
in	O
all	O
browsers	O
,	O
including	O
Safari	O
"	O
.	O
</s>
<s>
However	O
,	O
Microsoft	B-Application
Expression	I-Application
3	O
later	O
added	O
support	O
for	O
SSH	B-Protocol
File	I-Protocol
Transfer	I-Protocol
Protocol	I-Protocol
(	O
SFTP	O
)	O
(	O
otherwise	O
known	O
as	O
Secure	B-Protocol
FTP	I-Protocol
)	O
as	O
well	O
as	O
FTP	B-Protocol
over	O
SSL	O
(	O
FTPS	B-Protocol
)	O
.	O
</s>
<s>
Expression	B-Application
Web	I-Application
4	O
,	O
like	O
the	O
previous	O
versions	O
,	O
also	O
received	O
positive	O
reviews	O
with	O
PC	O
Magazine	O
calling	O
it	O
an	O
"	O
efficient	O
website	O
editor	O
with	O
full	O
support	O
for	O
current	O
standards	O
,	O
"	O
and	O
praising	O
its	O
"	O
clear	O
interface	O
"	O
and	O
"	O
flexible	O
preview	O
functions.	O
"	O
</s>
