<s>
Collaboration	B-Device
Data	I-Device
Objects	I-Device
(	O
CDO	O
)	O
,	O
previously	O
known	O
as	O
OLE	B-Device
Messaging	I-Device
or	O
Active	B-Device
Messaging	I-Device
,	O
is	O
an	O
application	B-Application
programming	I-Application
interface	I-Application
included	O
with	O
Microsoft	B-Application
Windows	I-Application
and	O
Microsoft	B-Operating_System
Exchange	I-Operating_System
Server	I-Operating_System
products	O
.	O
</s>
<s>
Starting	O
with	O
Exchange	O
2007	O
,	O
neither	O
the	O
Messaging	B-Protocol
API	I-Protocol
(	O
MAPI	B-Protocol
)	O
client	O
libraries	O
nor	O
CDO	O
1.2.1	O
are	O
provided	O
as	O
a	O
part	O
of	O
the	O
base	O
product	O
installation	O
.	O
</s>
<s>
CDONTS	B-Device
:	O
available	O
on	O
Windows	B-Device
NT	I-Device
4.0	I-Device
by	O
installing	O
the	O
Option	O
Pack	O
,	O
or	O
Exchange	B-Operating_System
Server	I-Operating_System
.	O
</s>
<s>
CDOSYS	B-Device
:	O
available	O
on	O
Windows	B-Application
2000	I-Application
and	O
onwards	O
by	O
installing	O
the	O
SMTP	B-Protocol
service	O
in	O
Internet	O
Information	O
Server	O
(	O
IIS	O
)	O
.	O
</s>
