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# Get TS Licensing Servers (Enterprise or AD Registered)
$termLicenseServers=Get-ADGroupMember -Identity "Terminal Server License Servers"
$termLicenseServers|Select-Object -Property @{label='computername';expression={[regex]::match($_.DistinguishedName,'([\w\d-]+)(?=,OU=)').Value}}
 
# Get TS Connection Points with Licensing Role Installed (may or may not be registered on the domain)
$termServers=Get-ADObject -Filter {objectClass -eq 'serviceConnectionPoint' -and Name -eq 'TermServLicensing'}
$termServers|Select-Object -Property @{label='computername';expression={[regex]::match($_.DistinguishedName,'([\w\d-]+)(?=,OU=)').Value}}
 
# Check localhost for TS Licensing Servers
$tsSettings=gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting
$tsSettings.GetSpecifiedLicenseServerList().SpecifiedLSList
 
# Find RDS Servers and their Licensing Configs
$servers=Get-ADComputer -Filter {OperatingSystem -Like '*Windows Server*' -and Enabled -eq $true}
$results=@()
$noResults=@()
$initCount=0
$serversCount=$servers.Count
write-host "There are $serversCount servers to check..."
foreach($server in $servers.DNSHostName){
    $initCount++
    write-host "$initCount of $serversCount`: $server"
    $rdsRole=try{Get-WindowsFeature RDS-RD-Server -ComputerName $server -EA Ignore}catch{$null}
    if($rdsRole){
        $rdsRoleInstalled=$rdsRole.InstallState -eq 'Installed'
        if($rdsRoleInstalled){
        $rdsLicenseServer=try{     
            $tsSettings=gwmi -namespace "Root/CIMV2/TerminalServices" Win32_TerminalServiceSetting -computername $server
            $tsSettings.GetSpecifiedLicenseServerList().SpecifiedLSList
        }catch{
            'not configured'
        }
        $result=@{
            computername=$server
            rdsLicenseServer=$rdsLicenseServer
            licensingType=$tsSettings.LicensingName
        }
        write-host "$server has RDS-RD-Server role installed with licensing server(s) $rdsLicenseServer"
        $results+=$result
        }else{ 
            write-host "$server doesn't have RDS-RD-Server role installed"
        }
    }else{
        write-warning "$env:computername cannot connect to $server"
        $noResults+=@{
            computername=$server
            connectionProblem=$True        
        }
    }
    #pause
}
 
$results|%{write-host "$($_.computername)`: $($_.rdsLicenseServer) | $($_.LicensingType)"}
$noResults|%{write-host "$($_.computername)"}
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