<s>
Source	B-Application
Control	I-Application
Plug-in	I-Application
API	I-Application
(	O
formerly	O
known	O
as	O
Microsoft	B-Application
Source	I-Application
Code	I-Application
Control	I-Application
Interface	I-Application
,	O
MSSCCI	B-Application
or	O
simply	O
SCC	O
API	B-General_Concept
)	O
,	O
as	O
applied	O
to	O
revision	B-Architecture
control	I-Architecture
software	I-Architecture
,	O
means	O
that	O
a	O
program	O
uses	O
a	O
particular	O
API	B-General_Concept
defined	O
by	O
Microsoft	O
to	O
extend	O
Microsoft	B-Application
Visual	I-Application
Studio	I-Application
.	O
</s>
<s>
It	O
was	O
first	O
developed	O
for	O
use	O
with	O
Microsoft	B-Protocol
Visual	I-Protocol
SourceSafe	I-Protocol
(	O
VSS	O
)	O
and	O
its	O
SDK	O
is	O
part	O
of	O
the	O
Microsoft	B-Application
Visual	I-Application
Studio	I-Application
SDK	O
.	O
</s>
