When installing the add-in you can specify whether it should be installed for Microsoft Word, PowerPoint, Excel and/or Outlook.


During the installation, the following registry settings are written, which are in principle in HKLM (but may also be in HKCU).


ApplicationPath
WordSOFTWARE\Microsoft\Office\Word\Addins\DocumentBuilderMicrosoftOfficeAddin.AddinModule
PowerPointSOFTWARE\Microsoft\Office\PowerPoint\AddIns\DocumentBuilderMicrosoftOfficeAddin.AddinModule
ExcelSOFTWARE\Microsoft\Office\Excel\Addins\DocumentBuilderMicrosoftOfficeAddin.AddinModule
OutlookSOFTWARE\Microsoft\Office\Outlook\Addins\DocumentBuilderMicrosoftOfficeAddin.AddinModule


This contains the following keys per application:


NameTypeValue
CommandLineSafe
DWORD0
Description
SZAddinModule
FriendlyName
SZeformity | Microsoft Office Add-in
LoadBehaviorDWORD3


For a more detailed explanation of the values, see the following article:

https://docs.microsoft.com/en-us/visualstudio/vsto/registry-entries-for-vsto-add-ins