COM Add-In vs Outlook Add-In
|COM Add-In||Outlook Add-In|
|Specific to Windows computers||Work on any web-based Outlook platform|
|Are downloaded .dll or .exe files that are installed on your PC||Does not have any code that is installed on your device|
Outlook add-ins are different from COM or VSTO add-ins, which are older integrations specific to Outlook running on Windows.
PoliteMail does not use any VSTO add-ins.