get a service from a list of remote computers.

Hi,

I run this:

$ComputerList = Get-Content -Path "P:\Tools\x64.txt"
$ComputerList | foreach { (Get-Service -Name YAM* -computername $_) | Select-Object MachineName, Name, DisplayName, Status}
<# Need to add another line to extract if YAM is not installed  #>
$ComputerList | foreach -ne { (Get-Service -Name YAM* -ComputerName $_) | Select-Object MachineName}

The first two lines produce the expected result.  The last line i can not get to work.  I am looking to list computers that do not have the service installed.  for example if i have pc1, pc2 and pc3, pc4 i the list, and 1 and 2 have the service,  i would like to get a list as below

MachineName                Name                  DisplayName                          Status

pc1                                 Yam                           Yam                                 Running

pc2                                  Yam                          Yam                                 Running

pc3      

pc4

any thoughts.

Thanks in advance.