param([string] $filename)

$string = c:\windows\sysnative\openfiles /QUERY /V | Select-String $filename

if($string.line){
	
	$user = %{ $string.line.Split(" ",[System.StringSplitOptions]::RemoveEmptyEntries)[2]; }
	$fullpath = %{ $string.line.Split(" ",[System.StringSplitOptions]::RemoveEmptyEntries)[-1]; }
			
		try{ [IO.File]::OpenWrite("$fullpath").close()
			$locked = "is not"
		}
			
		catch{
			$locked = "is"
			$result = "File: $fullpath. $user has the file opened and the file $locked locked."
			$result
			exit 2
		}

	$result = "File: $fullpath. $user has the file opened and the file $locked locked."
	$result
	exit 1
	}
	
Else {
	$result = "File is not Open"
	$result
	exit 0
}