Package the script and the installer. Target your "Engineering Workstations" device collection. Set the deployment to "Hidden" or "Required" with no user interaction.
Check if Excel add-in appears and loads (manually or via script checking registry LoadBehavior ). pi datalink silent install
If you have a raw .msi file, or you extract the MSI from the EXE (using PI-Datalink.exe /extract ), you use the standard msiexec command. Package the script and the installer