Specs:

Outlook: Microsoft Outlook 2003 SP3
O/S: Microsoft® Windows Vista™ Business Version 6.0.6001 Service Pack 1 Build 6001


My Sample, simplified code in VB6 that throws an error:

Dim olApp As Outlook.Application
Dim olNS As Outlook.NameSpace

Set olApp = CreateObject("Outlook.Application")
Set olNS = olApp.GetNamespace("MAPI")
olNS.GetDefaultFolder(olFolderTasks).Display


This displays the 'Tasks Folder' but on switching to 'Outlook Today' using the mouse, I get:

err.jpg