Outlook 2010 Interop registry error

Question

Hi
We have a VB.Net application that connects to an outlook 2010 installation using Interop. When we call reply() or forward() on the Mail Object we get the following error.
"The operation failed because of a registry or installation problem. Restart Outlook and try again. If the problem persists, reinstall."
This is happening on multiple machines, and only seems to appear when there are special characters in the subject, for example *,-,(,)
I have searched for this issue for some time, but the only answer that comes up is to recreate the outlook profile, however this problem occurs on multiple machine, and only with the above conditions
Dim newItem As Redemption.RDOMail = Nothing
If action = ActionType.Forward Then
newItem = oMailItem.Forward()
ElseIf action = ActionType.Reply Then
newItem = oMailItem.Reply()
Else
newItem = oMailItem.ReplyAll()
End If
Try
newItem.Display(True)
Catch ex As Exception
bSent = False
End Try

Answer 1

Hi
This is quite old legacy code, so I am not entirely sure why Redemption is used, but it is used for everything outlook related.
Here is the code for loading the session.
If Session Is Nothing Then
PMComponentLibrary.Emailing.Emailing.LoadRedemptionLoader()
Session = PMComponentLibrary.RedemptionL.RedemptionLoader64.new_RDOSession 'CreateObject("Redemption.RdoSession")
End If
If Not Session.LoggedOn Then
Session.Logon(Nothing, Nothing, False)
End If
and for getting the MailItem
mailI = Session.GetDefaultFolder(rdoDefaultFolders.olFolderInbox).Session.GetMessageFromID(msgEntryID)