When upgrading from an existing 4.2 client install of SAS Add-in to MS Office, you are not prompted to enable the Outlook portion of the Add-in. As SAS points out in the KB Post http://support.sas.com/kb/40/272.html, there is a 'Switcher Utility' available in the client install. When running this, I would verify that Outlook is closed first. And it might be safest to just close all of your Office products. Also, you will need installation/admin access on the machine to execute it successfully.
For my client machine the utility is located at
When the enable screen appears and all you need to do is check the Outlook application and click ok. Then it runs a couple of scripts in the background.
Now when opening Outlook, the 'SAS' menu item appears!