Have a look here:
http://msdn.microsoft.com/library/default.asp?URL=/library/psdk/cdo/_olemsg_overview_of_cdo.htm

>Steve:
>
>>Perhaps you can do what you need with CDO
>
>Allright, I know I'm just a Brit but can you explain the meaning of this acronym (CDO) <s> ?
>
>-=Gary