Vista - Windows XP, Users and Groups

I'm trying to write scripts for managing Windows XP's users and groups.
I can create user:

$ds=[ADSI]"WinNT://host"
$user=$ds.psbase.Children.Add("new_user","User")
$user.psbase.CommitChanges()
$user.SetPassword("new_pass")
$user.psbase.CommitChanges()

But I can't add user to group.
I tried this:

$user.PSBase.Children.Add("Administratorzy","Group")

But I got this:

Exception calling "Add" with "2" argument(s): "Obiekt usługi Active
Directory z
lokalizowany w ścieżce WinNT://workgroup/host/new_user nie jest
kontenerem."
At line:1 char:26

+ $user.PSBase.Children.Add( <<<< "Administratorzy","Group")


In English: Active Directry object is not a container.

It's horrible! I can't find anywhere how to add user to group. If
someone can help me, I will be happy.

P.S. I want to apologise for my English. I'm from Poland (and I'm proud
of it!)

Two Problems
One problem is that you need to use the User Path i.e.
"WinNT://$server/$User"
Two... you need to add the user via the group object.

Here is my method
================
Param([string]$user,[string]$group,[string]$server)
If(!($server)){$server = get-content env:COMPUTERNAME}
Write-Host ""
Write-Host "Adding User [$user] to group [$group]"
Write-Host
"----------------------------------------------" -ForegroundColor gray
$ary = @()
$srv = [ADSI]("WinNT://$server,computer")
$u = [ADSI]("WinNT://$server/$User,User")
$ary += $u.psbase.path

# Getting Group and Adding User
$g = [ADSI]("WinNT://$server/$group,group")
$g.psbase.invoke("add",$ary)
Write-Host "If no Exception... User Added" -ForegroundColor Green

"MaciekN" <maciek43360@xxxxxx> wrote in message
news:%23CUh8Y6%23HHA.2268@xxxxxx

I was just looking through my method... it is an old one (should still
work)... here is a revised version

function Add-UsertoLocalGroup{
Param([string]$user,[string]$group,[string]$server)
If(!($server)){$server = get-content env:COMPUTERNAME}
Write-Host "Adding User [$user] to group [$group]"
Write-Host
"----------------------------------------------" -ForegroundColor gray
$srv = [ADSI]("WinNT://$server,computer")
$u = [ADSI]("WinNT://$server/$User,User")
# Getting Group and Adding User
$g = [ADSI]("WinNT://$server/$group,group")
$g.psbase.invoke("add",$u.psbase.path)
}

"MaciekN" <maciek43360@xxxxxx> wrote in message
news:%23CUh8Y6%23HHA.2268@xxxxxx

Thanks!
It works!

Brandon Shell pisze:

I have one more question. How can I retrieve memebers of group?

I wrote this a long time ago... so long someone had to tell me it was on my
blog But here you go
Found Here http://bsonposh.com/modules/wordpress/?page_id=22 along with lots
of other "functions"

#########################################################################
function Get-GroupMembers{
# From: Brandon Shell
# Example:
# -- To List Users of a group
# PS> Get-GroupMembers -group Administrators -server myserver1
# -- To Check if User is member of Group
# PS> Get-GroupMembers -group Administrators -server myserver -user
jsmith
#################################################################
Param([string]$group,[string]$server,[string]$user)

# Check if $server has value. If not set to Local Host Name
If(!($server)){$server = get-content env:COMPUTERNAME}

# Getting Group Object
$g = [ADSI]("WinNT://$server/$group,group")

# Getting Member User Names
$ulist = $g.psbase.invoke("Members") |
%{$_.GetType().InvokeMember("Name", 'GetProperty', $null, $_, $null)}

# If User is specified we check each member for match
if($user)
{
foreach($u in $ulist)
{
if($u -eq $user){$found = $true}
}
if($found){Write-Host "User [$user] Found" -ForegroundColor
green;$true}
else{Write-Host "User [$user] NOT found!" -ForegroundColor
red;$false}
}
else
{ # No user specified... Output Member list
$ulist
}
}

"MaciekN" <maciek43360@xxxxxx> wrote in message
news:uqgsVHB$HHA.320@xxxxxx