Product Family: Act!
Product: Act! Pro, Act! Premium, Act! Premium (access via web)
Version: v18 and later
Third Party: Microsoft Office 2016
Only Act! v18 and later are compatible with Office 2016. If you are using a 64-bit version of Office, you must use Act! v19 or later in order to integrate Act! with Office. Act! v18 and earlier are only compatible with 32-bit versions of Office.