param (\\[String\\]$MACAddrString = $(throw 'No MAC addressed passed, please pass as xx:xx:xx:xx:xx:xx'))
 $MACAddr = $macAddrString.split(':') | %\\{ \\[byte\\]('0x' + $_) \\}
 if ($MACAddr.Length -ne 6)
 \\{
     throw 'MAC address must be format xx:xx:xx:xx:xx:xx'
 \\}
 $UDPclient = new-Object System.Net.Sockets.UdpClient
 $UDPclient.Connect((\\[System.Net.IPAddress\\]::Broadcast),4000)
 $packet = \\[byte\\[\\]\\](,0xFF * 6)
 $packet += $MACAddr * 16
 \\[void\\] $UDPclient.Send($packet, $packet.Length)
 write "Wake-On-Lan magic packet sent to $MACAddrString, length $($packet.Length)"