PowerShell: Get .NET PS and OS versions on all computers

Run this from an account which has access to all servers in the list.

# Get .NET Version and PowerShell Versions for all computers in AllComputersList.
#
$remoteCommand = @"
Get-ChildItem 'HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP' -recurse |
	Get-ItemProperty -name Version,Release -EA 0 |
		Where { `$_.PSChildName -match '^(?!S)\p{L}'} | sort Version -Descending |
			Select-Object -first 1 -ExpandProperty Version
"@

$VersionReport = @()
$AllComputersList |%{
	$CurrentServer = $_
    $dotNetVersion = $(Invoke-Command  -Computername $CurrentServer -Scriptblock $ScriptBlock -ErrorAction SilentlyContinue)
    $PsVersion = $(Invoke-Command  -Computername $CurrentServer -Scriptblock {$PSVersionTable.psversion} -ErrorAction SilentlyContinue)
    $os = Get-WmiObject -class Win32_OperatingSystem -computername $CurrentServer
    $Versions = [pscustomobject]@{
        Computer = $CurrentServer
        NETVersion = $dotNetVersion
        PSVersion = $PsVersion
        OSVersion = $os.Version + "`t" + $os.Caption 
    }
    $VersionReport += $Versions

	Write-Host   "$(Get-Date -Format g)	[$CurrentServer] `t.NET Version $dotNetVersion `tPSVersion $PsVersion `t$($os.Version)"
}

$VersionReport | sort PSVersion,Computer |Out-GridView