How to copy an Active Directory user's group membership to another user's account using Powershellv2

Hi,

I am new to Powershell but have a requirement to copy the groups that one user is a member of to another user's Active directory account.

Unfortunately we do not use and Quest Snap-ins due to current company policy so can only use the PS v2 cmdlets.

 I saw this PS script but not sure how to use it

$user1 = [ADSI]"LDAP://CN=from,OU=Test,DC=Contoso,DC=com"

$user2 = [ADSI]"LDAP://CN=to,OU=Test,DC=Contoso,DC=com"

foreach ($group in $user1.memberof)

{

Here is my version of the script which fails as I am obviously doing something wrong :(

$user1 = [ADSI]"LDAP://CN=Testuser1,OU=Test Users,OU=Test,OU=TestLab,DC=Lab.Net"

$user2 = [ADSI]"LDAP://CN=Testuser2,OU=Staging,DC=Lab.Net

foreach ($group in $user1.memberof)

{

$group = [ADSI]"LDAP://$group"

     $DN = $user2.distinguishedName

$group.Add("LDAP://$DN")

}

Thanks for any help with this