[PowerShell] Vérifier si un logiciel existe

Bonjour je voulais voir dans l'AD si un logiciel existe mais erreur pouvez vous m'aider merci

Code:

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$results=@()
 
$serviceslist = Get-rth.ad.rothschild.com -Filter ’Name -like "*"’ -SearchBase 'OU=__ServicesAgentsPC,DC=domaine,DC=domaine' | Select-Object Distinguishedname
 
foreach($service in $serviceslist)
{
	$computerlist = Get-ADComputer -Filter * -SearchBase $service | FT Name
 
	foreach ($computer in $computerlist) 
	{
	    if((Get-WmiObject -ComputerName $computer -Class Win32_Product | Where-Object Name -like "bomgar-ps*"))
	    {
	        $details = @{            
              		Date = get-date              
	                ComputerName = $Computer
                    bomgar-ps* = "Oui"               
	        }                           
	    }else{
	        $details = @{            
              		Date = get-date              
	                ComputerName = $Computer
                   bomgar-ps* = "Non"               
	        } 
        }
 
        $results += New-Object PSObject -Property $details  
	}
}
$results | export-csv -Path c:\temp\bomgar-psExport.csv -NoTypeInformation