I tried you sample code adapting the email addresses and attachment file pathname but I get the following error:

OLE IDispatch exception code 0 from CDO.Message.1: The "SendUsing" configuration value is invalid.

The easiest way to make sure that CDO is configured correctly is to make sure that Outlook Express is installed and configured on the machine. I sort of assumed that this was true in your case because you said that you were using it to send e-mail.

Also, there was an ommission in the code I posted for you.

After this line:

loMsg = CREATEOBJECT( [cdo.message] )

You need to add this one:

loMsg.Configuration = loConfig