<s>
Image	B-Application
for	I-Application
Windows	I-Application
is	O
a	O
disk	B-Application
imaging	I-Application
utility	B-Application
for	O
Microsoft	B-Application
Windows	I-Application
developed	O
by	O
TeraByte	O
Unlimited	O
.	O
</s>
<s>
When	O
first	O
released	O
in	O
2002	O
,	O
it	O
was	O
one	O
of	O
two	O
disk	B-Application
imaging	I-Application
software	O
products	O
that	O
could	O
create	O
a	O
consistent	O
point-in-time	O
backup	B-Application
of	O
Windows	O
while	O
Windows	O
was	O
running	O
.	O
</s>
<s>
The	O
point-in-time	O
technology	O
used	O
by	O
Image	B-Application
for	I-Application
Windows	I-Application
consists	O
of	O
using	O
a	O
special	O
driver	B-Application
,	O
named	O
PHYLock	O
,	O
that	O
effectively	O
redirects	O
data	O
being	O
overwritten	O
by	O
Windows	O
to	O
a	O
holding	O
cache	B-General_Concept
.	O
</s>
<s>
Since	O
Microsoft	O
's	O
introduction	O
of	O
the	O
Volume	O
Shadow	O
Copy	O
Service	O
(	O
vssvc.exe	O
)	O
,	O
this	O
technology	O
concept	O
is	O
now	O
generally	O
available	O
to	O
any	O
Windows	O
based	O
backup	B-Application
software	I-Application
.	O
</s>
<s>
Image	B-Application
for	I-Application
Windows	I-Application
supports	O
Windows	B-Device
NT	I-Device
4.0	I-Device
and	O
later	O
.	O
</s>
<s>
It	O
supports	O
both	O
x86	B-Operating_System
and	O
x64	B-Device
versions	O
of	O
Windows	O
.	O
</s>
