Today i had problems with an old Antivirus add-in in outlook… the AV program had been uninstalled but outlook still tried to start the add-in.
Here are some places to look for and remove the add-in:
– Tools/Options/Other/Advanced options/ COM Addins or ADD-In Manager
– HKEY_LOCAL_MACHINESoftwareMicrosoftOffice OutlookAddins
– HKEY_CURRENT_USERSoftwareMicrosoftOffice OutlookAddins
Change it to load behavior 2 or delete the key.