Frage zu Skript - Wie funktioniert?

if (((Get-ChildItem "\\server\path").count) -gt 1) {  
	if (Test-Path "c:\temp\process-chk.log") {  
		$previous_value = Get-Content "c:\temp\process-chk.log"  
	}
	$new_value = Get-WmiObject Win32_Process -ComputerName "." | `  
	where {$_.Name -eq 'Programm.exe'} | `  
	foreach {"$($_.WriteTransferCount)"}  
 
	if ($new_value -ne $previous_value) {
		Write-Host "Process OK"  
	}
	else {
		$message_success = "The process on the server is frozen."  
 
		$emailFrom = "support@mail.domain.local"  
		$emailTo = "'support@mail.domain.local','johndoe@mail.domain.local'"  
		$subject = "PROBLEM : SERVER PROCESS NAME FROZEN"  
		$smtpServer = "smtp_default"  
		$smtp = new-object Net.Mail.SmtpClient($smtpServer)
		$smtp.Send($emailFrom, $emailTo, $subject, $message_success)
	}
	$new_value    | Out-File "c:\temp\process-chk.log" -Force  
}