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Home > Success Center > Orion Platform > Orion Documentation > Orion Platform Administrator Guide > Deploy agents to nodes > Mass deploy an agent on Windows using MST files and a Group Policy

Mass deploy an agent on Windows using MST files and a Group Policy

Updated: September 13, 2017

If you are already using a mass-deployment technology, this deployment method is an easy way to get agents on a large number of computers.

Polling engine selection is important. When you download the MST file, the file includes the polling engine IP address and other vital information. When you deploy the agent using the MSI file, along with the MST file on the managed node, the agent is installed and pointed to the polling engine selected.

What is an MST file?

A Microsoft Transform (MST) file is a collection of specified changes applied to a base Windows Installer package file at the time of deployment. It is an overlay on top of an existing MSI file that defines what specific components or features of an application get installed. The MST file modifies the Microsoft Installer package.

After the software you want to install is packaged in the Windows Installer package format, you can use MST files to customize the software for your organization, such as installing only specific features. The modular design of Windows Installer packages simplifies deployment. When you apply transforms to an MSI file, Windows Installer can dynamically add or modify data in the installation database to customize the installation of the application. Additional information on creating MST files can be found on

Generate and download the MST file

  1. Click Settings > All Settings in the menu bar.
  2. Under Product Specific Settings, click Agent Settings > Download Agent Software.
  3. Click Windows, and click Next.
  4. Click Mass Deploy to Multiple Machines, and click Next.
  5. Select the agent communication mode.
    • For agent-initiated communication, enter the polling engine you want the agent to use. You may need to manually enter the polling engine information if the IP address is different from what the Orion server reports. This happens when the monitored host is behind a NAT or proxy device. In these cases, enter the IP address of the Orion server or the additional polling engine as it is accessible from the host where the agent will be installed.
      1. To use an existing polling engine, select Use Connection Details from Polling Engine, and then select a polling engine from the list.
      2. To manually enter the polling engine IP address, select Enter Connection Details Manually, and then enter the host name and IP address. The IP address is required. Use the host name and IP address of the polling engine that you can access from the client.
    • For server-initiated communications, enter your agent communication port number. The default port is 17790.
  6. Click Download .MSI, and save the file.
  7. Click Download .MST, and save the file.

Add the MST and MSI files to a Group Policy

  1. Share a folder containing the MST and MSI files.
  2. In Active Directory, locate the container where you want to advertise the application, and then access the container properties.

    A container is a site, domain, or organizational unit (OU).

  3. Create a Group Policy object.
  4. In Advanced Options, add the Software installation policy. Select the network path for the agent MSI and MST files.

Connecting passive agents to the Orion server

  1. In the Orion Web Console click Settings > All Settings > Node & Group Management > Manage Agents > Add Agent > Connect to a previously installed agent > Next.
  2. Enter the name, IP address, and port number for the agent and click Server-initiated communication.

The agent is deployed at login and is registered by the Orion server (if auto-registration is enabled).

When installation is successful and communication between the agent and the Orion server is successful, the agent is listed on the Manage Agents page.

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