You need CREATEOBJECT("MSMAPI.MAPISession.1") not Mapi.session - download my MAPI Class from the files section here at UT. It does everything for you (and it's free).

>I'm on a small project using Mapisession to send email in background.
>The problem is when I using CREATEOBJECT("Mapi.session"), I got an error.
>I already guest to install Echange client version to my computer an after that it works well. But I wouldn't install this software at all. I'm still using Outlook to manage mail.
>I already register MSMAPI32.OCX and MAPI32.dll.
>Thanks for your help!