>How do you determine if outlook is open.
>
>In the code:
>
>objSession = CREATEOBJECT("MSMAPI.MAPISession")
>objMessage = CREATEOBJECT("MSMAPI.MAPIMessages")
>...
>....
>objSession.SignOn
>
>At the SignOn I get a 1429 error if Outlook is not open.

You shouldn't get an error if Outlook is not open, MAPI works in the background and, depending on the properties you set, will either open a new session or, if already open, use the current session. Have a look at my MAPI Class in the files section, all the code you need is in there.