<s>
Temporary	B-Application
Internet	I-Application
Files	I-Application
is	O
a	O
folder	O
on	O
Microsoft	B-Application
Windows	I-Application
which	O
serves	O
as	O
the	O
browser	B-Protocol
cache	I-Protocol
for	O
Internet	B-Application
Explorer	I-Application
to	O
cache	O
pages	O
and	O
other	O
multimedia	O
content	O
,	O
such	O
as	O
video	O
and	O
audio	O
files	O
,	O
from	O
websites	O
visited	O
by	O
the	O
user	O
.	O
</s>
<s>
Each	O
time	O
a	O
user	O
visits	O
a	O
website	O
using	O
Microsoft	B-Application
Internet	I-Application
Explorer	I-Application
,	O
files	O
downloaded	O
with	O
each	O
web	O
page	O
(	O
including	O
HTML	B-Language
and	O
Javascript	B-Language
code	O
)	O
are	O
saved	O
to	O
the	O
Temporary	B-Application
Internet	I-Application
Files	I-Application
folder	O
,	O
creating	O
a	O
web	B-Protocol
cache	I-Protocol
of	O
the	O
web	O
page	O
on	O
the	O
local	O
computer	O
's	O
hard	B-Device
disk	I-Device
drive	I-Device
,	O
or	O
other	O
form	O
of	O
digital	O
data	O
storage	O
.	O
</s>
<s>
Despite	O
the	O
name	O
'	O
temporary	O
 '	O
,	O
the	O
cache	O
of	O
a	O
website	O
remains	O
stored	O
on	O
the	O
hard	B-Device
disk	I-Device
until	O
the	O
user	O
manually	O
clears	O
the	O
cache	O
,	O
the	O
cache	O
expires	O
or	O
if	O
the	O
cache	O
is	O
full	O
.	O
</s>
<s>
The	O
Temporary	B-Application
Internet	I-Application
Files	I-Application
cache	O
can	O
be	O
useful	O
in	O
certain	O
situations	O
.	O
</s>
<s>
Certain	O
online	O
media	O
files	O
(	O
such	O
as	O
embedded	O
Flash	O
movies	O
)	O
are	O
not	O
easily	O
accessed	O
directly	O
through	O
Internet	B-Application
Explorer	I-Application
,	O
but	O
are	O
automatically	O
saved	O
into	O
the	O
cache	O
after	O
viewing	O
them	O
.	O
</s>
<s>
The	O
cache	O
can	O
be	O
cleared	O
by	O
using	O
Internet	O
Options	O
within	O
the	O
Internet	B-Application
Explorer	I-Application
interface	O
,	O
but	O
this	O
method	O
is	O
subject	O
to	O
deletion	O
privacy	O
issues	O
.	O
</s>
<s>
On	O
Windows	B-Application
XP	I-Application
,	O
the	O
cache	O
is	O
usually	O
located	O
at	O
where	O
is	O
an	O
environment	O
variable	O
pointing	O
to	O
the	O
root	O
directory	O
of	O
the	O
logged-in	O
user	O
's	O
user	O
profile	O
)	O
.	O
</s>
<s>
Occasionally	O
an	O
additional	O
(	O
hidden	O
)	O
cache	O
named	O
"	O
Temporary	B-Application
Internet	I-Application
Files	I-Application
"	O
may	O
appear	O
in	O
or	O
in	O
.	O
</s>
<s>
User	O
A	O
runs	O
Internet	B-Application
Explorer	I-Application
from	O
his	O
own	O
account	O
,	O
but	O
under	O
the	O
credentials	O
of	O
user	O
B	O
.	O
</s>
<s>
The	O
functionality	O
of	O
runas	O
is	O
provided	O
and	O
supported	O
by	O
Windows	B-Application
XP	I-Application
Secondary	O
Logon	O
service	O
.	O
</s>
<s>
User	O
A	O
quits	O
Internet	B-Application
Explorer	I-Application
and	O
logs	O
out	O
of	O
his	O
account	O
.	O
</s>
<s>
However	O
,	O
due	O
to	O
a	O
bug	O
in	O
Windows	B-Application
XP	I-Application
,	O
the	O
svchost.exe	O
process	O
that	O
hosts	O
the	O
Secondary	O
Logon	O
service	O
retains	O
the	O
ownership	O
of	O
critical	O
Internet	B-Application
Explorer	I-Application
data	O
files	O
belonging	O
to	O
user	O
B	O
and	O
located	O
in	O
B	O
's	O
profile	O
directories	O
(	O
for	O
example	O
,	O
index.dat	O
file	O
located	O
in	O
directory	O
)	O
.	O
</s>
<s>
User	O
B	O
logs	O
into	O
his	O
account	O
and	O
runs	O
Internet	B-Application
Explorer	I-Application
.	O
</s>
<s>
Internet	B-Application
Explorer	I-Application
is	O
unable	O
to	O
obtain	O
write	O
access	O
to	O
the	O
aforementioned	O
files	O
,	O
which	O
makes	O
it	O
quietly	O
recreate	O
the	O
supporting	O
directories	O
under	O
the	O
current	O
location	O
as	O
a	O
fail-safe	O
measure	O
.	O
</s>
<s>
Internet	B-Application
Explorer	I-Application
will	O
continue	O
to	O
use	O
the	O
directories	O
under	O
until	O
the	O
files	O
at	O
the	O
original	O
location	O
become	O
writable	O
again	O
.	O
</s>
<s>
On	O
Windows	B-Application
Vista	I-Application
,	O
the	O
cache	O
for	O
Internet	B-Application
Explorer	I-Application
7	I-Application
is	O
usually	O
located	O
at	O
where	O
is	O
an	O
environment	O
variable	O
pointing	O
to	O
(	O
note	O
that	O
the	O
checkbox	O
for	O
'	O
Hide	O
protected	O
operating	O
system	B-General_Concept
files	I-General_Concept
 '	O
under	O
'	O
Folder	O
Options	O
 '	O
must	O
be	O
unchecked	O
and	O
the	O
'	O
Show	O
hidden	B-Application
files	I-Application
and	O
folders	O
 '	O
option	O
enabled	O
for	O
the	O
files	O
to	O
be	O
visible	O
in	O
Windows	B-Protocol
Explorer	I-Protocol
)	O
.	O
</s>
<s>
For	O
all	O
other	O
Trident-based	O
applications	O
,	O
the	O
cache	O
is	O
located	O
at	O
.	O
</s>
<s>
Like	O
on	O
Windows	B-Application
XP	I-Application
,	O
the	O
location	O
of	O
the	O
cache	O
can	O
be	O
changed	O
by	O
moving	O
the	O
folder	O
location	O
in	O
Internet	B-Application
Explorer	I-Application
or	O
by	O
changing	O
a	O
value	O
in	O
the	O
registry	O
.	O
</s>
