---
UID: NA:eventsys
ms.assetid: eab25bea-a3c2-3d64-ae7c-4c8d9d13f5e9
ms.date: 01/11/2019
ms.keywords: 
ms.topic: conceptual
tech.root: com
---

# Eventsys.h header


## -description


This header is used by Component Object Model (COM). For more information, see:

- [Component Object Model (COM)](../_com/index.md)

