Your System Administrator may instruct you to reinstall the Outlook plug-in, for example, if CRM is upgraded with a new plug-in.
To reinstall the Outlook plug-in for Classic Outlook Integration:
A dialog box is displayed, informing you that the new plugin will load next time you start MS Outlook.
You can check the Plug-in version from Internet Explorer. Select Tools | Internet Options | Settings | View Objects, then right-click on the CRM Outlook Plug-in file and select Properties | Version.
Go to Classic Outlook Integration home page...
See Also:
Downloading the Outlook Plug-in for Classic Outlook Integration
Uninstalling the Outlook Plug-in for Classic Outlook Integration