---
title: "Install SIR extension"
slug: "install-sir-extension-1"
updated: 2026-10-26T07:33:44Z
published: 2026-10-26T07:33:44Z
canonical: "docs.trellix.com/install-sir-extension-1"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://docs.trellix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Install SIR extension

If you are using Trellix Agent for Operational Technology (OT), the System Information Reporter extension must be checked-in on the ePO server. The extension file is in .ZIP format.

1. Create a temporary folder on your local drive.
2. Download the `SIR_ePOExtension.zip` archive and save it to the temporary folder.
3. Log on to your ePO console as an administrator.
4. Go to Configuration → Extensions → Install Extension. The Install Extension dialog box is displayed.
5. Click Browse to locate the extension file `SIR_ePOExtension.zip`, then click OK. The Install Extension page appears with the extension name and version details.

For more information on using SIR extension, see how to [deploy Trellix Agent for OT](/docs/deploy-trellix-agent-for-ot-1).

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