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Dynamic Environment Manager – Upgrade GPO Templates to v. 2506

Release date: November 10th 2025

Welcome to my Omnissa Dynamic Environment Manager series. In this session I will describe how I upgraded the Dynamic Environment Manager GPO templates to v. 2506. According to Omnissa’s official documentation, this should be done as step 12 in the supported update sequence.

Horizon 8 Upgrade Overview

I start out by downloading the installation media from Omnissa Customer Connect

Previously I’ve done this manually, but this time I will be doing the admx-upgrade from my management server, using the PowerShell script below. The workflow of the script is as follows:

Prerequisites:

  • PowerShell Administrative access to the server running the DEM Management Console
  • Permissions to write to SYSVOL PolicyDefinitions folder
  • Run script in Administrative Powershell session

dem-copyAdmx.ps1

# Dynamic Environment Manager Admx Upgrade script

$installDir = "C:Install"
New-Item -Path $installDir -type directory -Force

$demZip = "<network-path>Omnissa-DEM-Enterprise*.zip*.zip"
Expand-Archive -Path $demZip -DestinationPath $installDir

$admxSource = Get-Item $installDir*ADMX*

$admxDestination = '<network-path>PolicyDefinitions'

Copy-Item -Path $admxSource* -Destination $admxDestination -Recurse -Force

Remove-Item –path $installDir –Recurse -Force

This concludes my session about upgrading the Dynamic Environment Manager Management GPO Templates to v. 2506. I can now proceed with upgrading the Application Profiler, posted here: Dynamic Environment Manager – Upgrade Application Profiler to v. 2506 (No upgrade Available)

DEM Documentation:

Omnissa Documentation:

Dynamic Environment Manager – Upgrades

My Omnissa DEM LAB Set Up

Disclaimer: Every tips/tricks/posting I have published here, is tried and tested in different it-solutions. It is not guaranteed to work everywhere, but is meant as a tip for other users out there. Remember, Google is your friend and don’t be afraid to steal with pride! Feel free to comment below as needed.