Take a look at BLAT.DLL - it is a standalone SMTP client with a programmable interface.

>Hi,
>
>following procedure works fine in XP (hanks to Ravi's article in Wiki
>
>

>loMsg = Createobject("CDO.Message")
>loMsg.Fields("Priority").Value = 1 && 1 = High, 0 = Normal	
>loMsg.Fields.Update()	
>
>iConf = Createobject("CDO.Configuration")
>Flds = iConf.Fields
>With Flds
>    .Item("http://schemas.microsoft.com/cdo/configuration/sendusing") = ThisForm.nUsing
>    .Item("http://schemas.microsoft.com/cdo/configuration/smtpserver") = ThisForm.cSMTPServer
>    .Item("http://schemas.microsoft.com/cdo/configuration/smtpserverport") = ThisForm.nPort
>    .Update
>ENDWITH
>
>With loMsg
>    .Configuration = iConf
>    .To = lcToAddress
>    .From = ThisForm.cSender
>    * Define other message parameters ....
>     .Send
>ENDWITH
>
>

>
>Now when use this in Win7 I will get an error SMTPServer and Sender address are not known, mail cannot be sent out.
>
>How to solve this?
>
>Regards,
>
>Koen