---
title: "Install the extension using Software Catalog (Software Manager)"
slug: "install-the-extension-using-software-catalog-software-manager-7"
tags: ["DLP 11.10.x", "DLPD 11.10.x", "Install and Get Started"]
updated: 2026-11-05T14:30:37Z
published: 2026-11-05T14:30:37Z
canonical: "docs.trellix.com/install-the-extension-using-software-catalog-software-manager-7"
---

> ## 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 the extension using Software Catalog (Software Manager)

Using the **Software Catalog** (ePO - On-prem version 5.10 **Software Manager** in ePO - On-prem versions 5.9 or earlier) is the most convenient method of installation. As an added benefit, you can also use it to upgrade and remove extensions.

Verify that the ePO - On-prem server name is listed under Trusted Sites in the Internet Explorer security settings.

1. In ePO - On-prem 5.10, select **Menu** → **Software** → **Software Catalog**.

In ePO - On-prem 5.9 or earlier, select: **Menu** → **Software** → **Software Manager**
2. In the left pane, expand the product categories and select **Data Loss Prevention**.
3. Select your Trellix DLP product extension you need to install.

In ePO - On-prem 5.9 or earlier, the install package and extension details are displayed in the lower pane.
4. For all available software, click **Check In All**. To install a specific extension, click **Check In**.
5. Select the checkbox to accept the agreement, then click **Check In** in ePO - On-prem 5.10. Click **OK** in ePO - On-prem 5.9 or earlier.

The extension is installed. Extensions that are checked in appear in the **Checked In Software** list. As new versions of the software are released, you can use the **Update** or **Update All** option to update the extensions.