The v1 plugin and addin do not have the SF connection built in. The v2 plugin and addin both have the SF connection.
The Salesforce for Outlook Plugin conflicts with the Addin (v1 or v2) – this was not resolved with the v2 version. There should be NO conflict with the Salesforce for Outlook Plugin and the Brainshark Plugin.
PM continues to go through the process of submitting v2 of the Addin to the Microsoft Store. Timing is TBD.
Installation instructions Add-in