Customers may get an error when trying to register the RE7Outlook.dll using an elevated command prompt - usually with Outlook 2013 installed. This is even after verifying that we are using a 32 bit version of Outlook and registering the DLL as an administrator.
We are currently evaluating this issue and will update this article when we have more information.
Steps to Duplicate
Install Outlook 2013 on a clean install of Windows (where there has been no previous version of Office installed)
Try and register the RE7Outlook.dll with an elevated command prompt