for some reason, this will shutdown remote PCs, but when I try to LOGOFF remote machines, the local machine logs off

code:
 Function RemoteLRS($computer,$x)
	dim $oWBEM, $oShutdown, $oOpSys
	;              0 - LogOff              4 - Force LogOff
	;              2 - Reboot              6 - Force Reboot
	;              8 - Shutdown           12 - Force Shutdown
	$oWBEM = GetObject('winmgmts:{(Shutdown)}!\\$computer\root\CIMV2')
	$oShutdown = $oWBEM.ExecQuery('Select * from Win32_OperatingSystem where Primary=true')
	if $oShutdown.count
		For Each $oOpSys in $oShutdown
			$RemoteLRS=$oOpSys.Win32Shutdown($x)
			Next
		endif
	$oShutdown=0  $oWBEM=0
	endfunction
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