OfficeIns from NirSoft is a portable freeware utility that lists all the Microsoft Office add-ins present on your computer.
This tool is useful in case of issues with Microsoft Office add-ins ( i.e. add-ins can cause not to open Outlook or frequent non-responding issues when an add-in is running etc.). It shows the list of all installed add-ins for Microsoft Office products (Word, Excel, Outlook, PowerPoint, Project, Access, Visio and FrontPage) and allows you to easily disable and enable them.
License : Freeware
Link : OfficeIns