Hello!

I'm making VSTO add-in (VS2008) for helpdesk. I'm trying to customize Ribbon
on load "read email" inspector.
I have ready code, but I'm trying to do something like that:

When email is comming with subject "Opened entry" i want to display
RibbonGroup "New Call" with button "New"
When email will have subject "Call Update" i want to display only
RibbonGroup "Update Call" with button "Update"

I thought, that I can do this in OnLoad metod in Ribbon. But I'm getting
"Object is not set to an instance of an object". So it looks, like inspector
is not exist at this moment. But inspector is starting my ribbon. Maybe
someone have solution for this?

Piece of code from OnLoad:

Dim ol As New Microsoft.Office.Interop.Outlook.Application()
Dim NewMail As poczta.MailItem
NewMail = ol.ActiveInspector.CurrentItem

If NewMail.Subject.Contains("Opened entry") Then
   grpUpdateRibbGroup.visible = false
End if