Unable to Install/upgrade Enterprise Vault (EV) Outlook Add-in.
Article ID: 100046961
Updated On:
Cause
This usually happens if there have been attempts to install multiple addin versions or if the previous version uninstall was unsuccessful.
Resolution
Open the registry editor (regedit.exe) and navigate to the following location:
HKEY_CLASSES_ROOT\Installer\Products
Look in each of the GUID keys for one which contains information about the EV add-in
If present, backup the registry and rename/delete the key . Once renamed/deleted, retry the installation.
Issue/Introduction
Following error is seen when running the Outlook Add-in installer on a client computer.
"Version of product detected, Upgrade from existing version of the product is not supported."
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