Hi,

the following code runs using Exchange 2003 much more faster than with Exchange 2010. The data amount is the same.

Dim oAppointments As clsAppointments
Set oAppointments = New clsAppointments

Dim oItems As Outlook.Items

Set oItems = oCalendar.Items
oItems.Sort "[Start]"
oItems.IncludeRecurrences = True
Dim oTemp As Object

Set oTemp = oItems.Find(strSearchParam) ' - These call needs 5x longer using Exchange 2010 than using Exchange 2003

'strSearchParam contains the value:
'[End] "Montag, 7. Februar 2011 00:00" and [Start] = "Sonntag, 13. Februar 2011 23:59"

What do I have to consider using Exchange 2010? Do I have to configure something on the Exchange 2010?

Thanks
Christian