Powershell v1.0, IIS6, and remote machines

I found this snippet on the web:

$computer="server" 
$co = new-object System.Management.ConnectionOptions 
#$co.Username="domain\username" 
#$co.Password="password" 
$co.Authentication=[System.Management.AuthenticationLevel]::PacketPrivacy 
#$co.EnablePrivileges=$true; 
$wmi = New-Object System.Management.ManagementObjectSearcher 
$wmi.Query="Select * From IIsApplicationPool" 
$wmi.Scope.Path="\\$computer\root\MicrosoftIISv2" 
$wmi.Scope.Options=$co 
$wmi.Get() | foreach { $_.name } 
In PowerShell v2.0 there is a new parameter, -Authentication,  to specify 
the authentication level (one line): 
gwmi -class IIsApplicationPool -namespace "root\MicrosoftIISv2" -computer 
$computer -authentication PacketPrivacy |  foreach { $_.name}