Powershell script to install Windows Updates (msu) from folder

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#
# Name: InstallWindowsUpdates.ps1
# Author: Tony Murray
# Version: 1.0
# Date: 16/11/2010
# Comment: PowerShell script to install 
# Windows Update files
#
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# Specify the location of the *.msu files
$updatedir = "C:\E2010 SP1 Prereqs\"
###

$files = Get-ChildItem $updatedir -Recurse
$msus = $files | ? {$_.extension -eq ".msu"}

foreach ($msu in $msus)
{
    write-host "Installing update $msu ..."
    $fullname = $msu.fullname
    # Need to wrap in quotes as folder path may contain spaces
    $fullname = "`"" + $fullname + "`""
    # Specify the command line parameters for wusa.exe
    $parameters = $fullname + " /quiet /norestart"
    # Start wusa.exe and pass in the parameters
    $install = [System.Diagnostics.Process]::Start( "wusa",$parameters )
    $install.WaitForExit()
    write-host "Finished installing $msu"
}

write-host "Restarting Computer"
#Restart-Computer