<s>
SCSI	B-Application
Pass	I-Application
Through	I-Application
Direct	I-Application
(	O
SPTD	B-Application
)	O
is	O
a	O
proprietary	B-Application
device	B-Application
driver	I-Application
and	O
application	B-General_Concept
programming	I-General_Concept
interface	I-General_Concept
(	O
API	B-General_Concept
)	O
developed	O
by	O
Duplex	O
Secure	O
Ltd	O
.	O
that	O
provides	O
a	O
new	O
method	O
of	O
access	O
to	O
SCSI	B-Architecture
storage	O
devices	O
.	O
</s>
<s>
The	O
SPTD	B-Application
API	B-General_Concept
is	O
not	O
open	O
to	O
the	O
public	O
.	O
</s>
<s>
SPTD	B-Application
is	O
used	O
by	O
Daemon	B-Application
Tools	I-Application
and	O
Alcohol	B-Application
120%	I-Application
.	O
</s>
<s>
It	O
is	O
also	O
utilized	O
in	O
PowerArchiver	B-Language
Pro	O
2010	O
(	O
v11.60	O
+	O
)	O
;	O
however	O
,	O
a	O
configurable	O
option	O
is	O
available	O
to	O
disable	O
it	O
.	O
</s>
<s>
It	O
is	O
known	O
to	O
be	O
incompatible	O
with	O
kernel-mode	O
debugging	O
including	O
WinDbg	B-Application
and	O
Microsoft	O
's	O
other	O
command	O
line	O
debuggers	O
as	O
well	O
as	O
SoftICE	B-Application
.	O
</s>
<s>
Further	O
,	O
certain	O
versions	O
of	O
the	O
freeware	B-License
optical	O
media	O
burning	O
software	O
ImgBurn	B-Application
will	O
issue	O
a	O
warning	O
,	O
"	O
SPTD	B-Application
can	O
have	O
a	O
detrimental	O
effect	O
on	O
drive	O
performance	O
"	O
,	O
if	O
the	O
application	O
detects	O
that	O
SPTD	B-Application
is	O
active	O
or	O
installed	O
.	O
</s>
<s>
ConeXware	O
,	O
Inc	O
.	O
(	O
the	O
maker	O
of	O
PowerArchiver	B-Language
)	O
claims	O
that	O
in	O
their	O
internal	O
testing	O
,	O
SPTD	B-Application
improved	O
optical	O
drive	O
performance	O
by	O
up	O
to	O
20	O
percent	O
in	O
comparison	O
to	O
the	O
"	O
old	O
school	O
"	O
SCSI	B-Application
Pass	I-Application
Through	I-Application
Interface	I-Application
.	O
</s>
