---
sourceDocument: Brazil Build or modify applications
sourceDocumentLink: https://www.servicenow.com/docs/r/application-development

 Release :

    - brazil

ft:locale :

    - en-US

ft:publication_title :

    - Brazil Build or modify applications

ft:clusterId :

    - cadev

bundleId :

    - cadev

workflow :

    - Development, Data, and Analytics


---

# Download and install .Net Desktop Runtime

# Download and install .Net Desktop Runtime for AI Desktop Actions {#ariaid-title1}

Release version: Brazil  
Updated September 10, 2026  
![](https://www.servicenow.com/docs/portal-asset/ico-clock) 1 minute to read  
Reduce setup time and prevent installation errors by downloading and installing .Net Desktop Runtime following the instructions.

## Before you begin

Ensure that you have installed the AI Desktop Actions MSI. For more information, see [Download AI Desktop Actions installer for defined desktop actions](https://www.servicenow.com/docs/HMOiO3LL~jnNfzRsl6R8CQ "Download the AI Desktop Actions installer so that you can install AI Desktop Actions on your Windows machine for designing and running defined desktop actions.").

Role required: admin

## About this task

The AI Desktop Actions installer guides you through installation of .NET Desktop Runtime during the setup.

## Procedure

1. Copy the following script to your clipboard.  

       Write-Host "--- Initializing Agentic Environment Setup ---" -ForegroundColor Cyan
       $ErrorActionPreference = "Stop"

       $downloadUrl = "https://dot.net/v1/dotnet-install.ps1"
       $workingDir = $PSScriptRoot
       $scriptPath = Join-Path $workingDir "dotnet-install.ps1"

       try {
           Write-Host "[1/3] Downloading official Microsoft installer..." -ForegroundColor Yellow
           Invoke-WebRequest -Uri $downloadUrl -OutFile $scriptPath

           Write-Host "[2/3] Installing .NET 9.0.10..." -ForegroundColor Yellow
           Set-Location $workingDir

           & .\dotnet-install.ps1 `
               -Architecture x64 `
               -InstallDir "C:\Program Files\dotnet\" `
               -Runtime windowsdesktop `
               -Version 9.0.10

           & .\dotnet-install.ps1 `
               -Architecture x64 `
               -InstallDir "C:\Program Files\dotnet\" `
               -Runtime dotnet `
               -Version 9.0.10

           Write-Host ""
           Write-Host "--- SUCCESS: System is ready for Agentic Desktop ---" -ForegroundColor Green
       }
       catch {
           Write-Host ""
           Write-Host "--- ERROR: Installation failed ---" -ForegroundColor Red
           Write-Host $_.Exception.Message -ForegroundColor Red
       }

       Write-Host ""
       Write-Host "Press any key to exit..."
       $null = $Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyDown")
        
2. Paste the script in any text editor.
3. Save the file with a `.ps1` extension.
   1. Select FileSave As.
   2. In the File name field, enter a name and save the file with a `.ps1` extension.  
      Example: `myscript.ps1`
   3. Set Save as type to All Files (.).
   4. Choose a location such as Documents or Desktop.
   5. Select Save.
   {#install-dot-network-framework-ad__substeps_whw_pdt_33c}
4. Run the script in Windows PowerShell.
   1. Select Start.
   2. Search for Windows PowerShell.
   3. Select Run as administrator.
   4. Use the <kbd class="ph userinput">cd</kbd> command to move to the folder where you saved the script.  
      Example:

          cd C:\Users\YourName\Documents

   5. Run the script by entering the following command.  
      Example:

          .\myscript.ps1

   {#install-dot-network-framework-ad__substeps_agf_52t_33c}

## Result

.NET Desktop Runtime is downloaded and installed on your system.

## What to do next

Use AI Desktop Actions to design desktop actions. For more information, see [Defined desktop actions in AI Desktop Actions](https://www.servicenow.com/docs/jOaNyKYKreHAkgAjf9Yezw "Desktop actions enable you to automate repetitive tasks on your desktop and web applications. This capability helps you streamline repetitive tasks, improve efficiency, and integrate desktop application workflows into your ServiceNow processes.").

*[\>]: and then