<s>
SCSI	B-Application
Pass	I-Application
Through	I-Application
Interface	I-Application
(	O
SPTI	B-Application
)	O
is	O
an	O
application	B-Application
programming	I-Application
interface	I-Application
(	O
API	B-Application
)	O
accessing	O
a	O
SCSI	B-Architecture
device	O
.	O
</s>
<s>
It	O
is	O
developed	O
by	O
Microsoft	O
Corporation	O
and	O
is	O
part	O
of	O
the	O
Windows	B-Device
NT	I-Device
family	I-Device
of	O
operating	O
systems	O
.	O
</s>
<s>
The	O
storage	O
port	O
drivers	O
provide	O
an	O
interface	O
for	O
Win32	B-Library
applications	O
to	O
send	O
SCSI	B-Architecture
Command	O
Descriptor	O
Block	O
(	O
CDB	O
)	O
messages	O
to	O
SCSI	B-Architecture
devices	O
.	O
</s>
<s>
SPTI	B-Application
is	O
accessible	O
to	O
Windows	O
software	O
using	O
the	O
DeviceIoControl	O
Windows	B-Library
API	I-Library
.	O
</s>
<s>
ImgBurn	B-Application
offers	O
SPTI	B-Application
as	O
a	O
method	O
for	O
accessing	O
optical	O
disc	O
drives	O
.	O
</s>
<s>
SCSI	B-Application
Pass-Through	I-Application
Direct	I-Application
(	O
SPTD	B-Application
)	O
by	O
Duplex	O
Secure	O
,	O
Ltd	O
.	O
</s>
