Powershell: Check if KB patch is installed

#Add-PSSnapIn VMware.VimAutomation.Core

# Connect to vCenter
$VC = Connect-VIServer (Read-Host "Enter vCenter server")

# Enter the KB#
$HotFixID = (Read-Host "Enter KB#")
Write-Host

# Get all VM’s with powerstate = PoweredOn
$VMS = Get-VM | Where {$_.PowerState -eq "PoweredOn"} | Sort Name

{
# Process only Windows Server VM’s
if ($VM.Guest.OSFullName -match "Microsoft Windows Server*")
  { 
  # Get all the info using WMI
  $results = get-wmiobject -class "Win32_QuickFixEngineering" -namespace "root\CIMV2" -ComputerName $VM 
  
    # Loop through $results and look for a match then output to screen
    foreach ($objItem in $results)
            {
                # Do the match
                if ($objItem.HotFixID -match $HotFixID)
                    {
                    write-host $objItem.CSName
                    write-host "Hotfix "$HotFixID" installed"
                    write-host
                    }
            } 
   }
}
# Disconnect from vCenter
Disconnect-VIServer -Confirm:$False

# Get content
$computers = get-content c:\computers.txt

# Get all the info using WMI
$results = get-wmiobject -class “Win32_QuickFixEngineering” -namespace “root\CIMV2″ -computername $computers

# Loop through $results and look for a match then output to screen
foreach ($objItem in $results)
{
    if ($objItem.HotFixID -match “KB932168″)
    {
        write-host $objItem.CSName
        write-host “Hotfix KB932168 installed”
        write-host
    }
}