Installs an MSI remotely on multiple computers.

Install-MSIRemotely.ps1

<#
    .SYNOPSIS
    Install software
    .DESCRIPTION
    This script installs software on a list of servers, using powershell remoting. It requires an .msi installer.
    The script loops through each server from the list. The target file will be copied and installed using msiexec (silently). EVERY action will be  recorded in a file specified after /L switch. 
    Then the script verifies that the application is installed and is the correct version
    .NOTES
    Author: Lee Sartorelli 
    Created: 31/5/2018
    Powershell version 3 is required to pass variables to the remote session.
 #> 

#Requires -Version 3

#Modify variables as required for the environment
$serverList = Get-Content C:\temp\list.txt #List of the servers - one per row. No semicolons, etc
$sourceFile = "\\servername\C$\temp\installer.msi" #Full path to installer file - must be a UNC path
$msiName = "installer.msi" #Name of the msi file
$targetPath = "C:\temp" #Destination path to copy installer to
$msiArgs = "/i $targetPath\installer.msi AGREETOLICENSE=Yes /quiet"  #Install arguments for msiexec
$logPath = "\\servername\C$\temp" #Path for msi log. Should be a UNC path or logs will be saved locally on each server
$appName = "Softwarename" #App name as it appears in Registry
$appVersion = "1.0.2.0" #Version of the app being installed, as it appears in the registry


foreach ($s in $serverList)
{
    try
    {
    #Create remote session
    $session = New-PSSession -ComputerName $s

    #Copy file to server
    Write-Output "Copying install file to $s"
    Invoke-Command -Session $session -ScriptBlock { 
        Copy-Item $using:sourceFile $using:targetPath
        }


    #Install Application
    Write-Output "Starting installation on $s"
    $return=Invoke-Command -Session $session -ScriptBlock {
        $p = Start-Process "msiexec" -ArgumentList "$using:msiArgs /L* $using:logPath\$using:s.log" -Wait -Passthru 
        }
    
    #Check registry for installed and correct version
    Invoke-Command -Session $session -ScriptBlock {
        $regPath = "HKLM:\Software\Microsoft\Windows\CurrentVersion\Uninstall\*";
        $installedApp = Get-ItemProperty $regPath | where {$_.DisplayName -eq $using:appName -and $_.DisplayVersion -eq $using:appVersion};
        If ($installedApp)
            {
            Write-Host "$using:appName successfully installed on $using:s" -ForegroundColor Green
            }
        Else
            {
            Write-Host "Something went wrong. Check the install log for more information: $using:logPath\$using:s.log" -ForegroundColor Red
            }
            }
        }

    catch
    {
    Write-Host "Unable to install $appName on $s" -ForegroundColor Red
    Write-Output $_
    }

    finally
    {
    #Clean up
    Invoke-Command -Session $session -ScriptBlock {
        Remove-Item -Path $using:targetPath\$using:msiName
        }
    Remove-PSSession $session
    }
}