Powershell script to kill process based on processor utilization

I'm using this command to kill winword.exe processes on a server we have that uses MS Word for a document conversion process.  Because of a bug in this process, the winword.exe process is being left open when the conversion should close it after it completes.  Until a bug fix is released for the third-party app involved, I would like to devise a method to kill these processes.  I know I can use this power shell command:

stop-process -Name winword* -force

it works just fine.  However, I'd like to automate it if possible.  I was wonder if it would be possible to put this in a PowerShell script that will do the following:

1. run the stop-process command for winword.exe if a certain total processor threshold is crossed...let's say 75%.
2. close all winword.exe processes older than 2 minutes.
3. send an alert via email when script is run

I'm still learning pshell, and I know this is a little fancier than what I'm used to doing, so i was wondering if anyone had any ideas on how to accomplish these goals.

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Brent ChallisConnect With a Mentor Principal: ITCommented:
Here is a function that test CPU utilisation and kill processes that have been running for longer than a defined time period:

function Kill-Process
    $cpuUtilisation = (Get-WMIObject win32_processor).LoadPercentage
    Write-Verbose $pu
    if ($cpuUtilisation -ge $UtilisationTheshold)
            $processes = Get-Process $ProcessName
            foreach ($process in $processes)
                $runningTime = ((Get-Date) - $process.StartTime).TotalMinutes
                if ($runningTime -ge $ProcessAge)
                    $process | Stop-Process
            Write-Verbose $_
        Write-Verbose "Utilisation under threshold $UtilisationTheshold"
    Write-Verbose "Complete."

Kill-Process -verbose
Brent ChallisPrincipal: ITCommented:
How do you want to define utilisation?  Is it per processor or per core?  Are you concerned with multi processor (as opposed to multi core) systems?
QlemoConnect With a Mentor DeveloperCommented:
I agree with above solution, but would "improve" the code in the try block to make it more "powershellish":
Get-Process $ProcessName |
  ? { ((Get-Date)-$_.StartTime).TotalMinutes -ge $ProcessAge } |

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