If you have just upgraded from Outlook 98/2000 IMO to a newer version, the LDAP service is installed in lieu of the Outlook Address Book service. Go to Control Panel-Mail Icon-Accounts-select your Address Book Directories and then Change. Remove the LDAP service and add the Outlook Address Book Service.

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Milly Staples [MVP - Outlook]

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After furious head scratching, zorbo asked:

| What is it and how do I stop it from poping up on startup of outlook