>Hi, all
>
>With this expression i can send mail by Microsoft Outlook 2000,
>
>oOutLookObject = CreateObject("Outlook.Application")
>
>But if i change to,
>
>oOutLookObject = CreateObject("OutlookExpress.Application")
>
>i get this error, class OutlookExpress.Aplication is not found.
>

There is no automation interface to OutlookExpress - if you want to use the Outlook automation model, you need Outlook 97, Outlook 98 or Outlook 2000, or you need to use one of the non-Outlook-specific interfaces such as MSMAPI, which are not as simple or quite as fully-featured as Outlook.