Help with Active Directory!

[Brenda1]

Hello everybody, I have an issue with active Directory, here is the thing:

I need to work with 2 objects in Active Directory: User Object and Contact Object. I used this code for get all the attributes I need from user object:

$strCategory = "person"
$path = "dc=na,dc=company,dc=domain"
$field = "SamAccountName"
$strUserName = "*"
$objConnection = ObjCreate("ADODB.Connection")
$objConnection.Open ("Provider=ADsDSOObject;")
$objCommand = ObjCreate("ADODB.Command")
$objCommand.ActiveConnection = $objConnection
$objCommand.CommandText = "<LDAP://"& $path &">;(&(objectCategory=" & $strCategory & ")" & "("& $field & "=" & $strUserName & "));altRecipient;Subtree"
$objRecordSet = $objCommand.Execute

With this as I said I can manipulate all the atributtes in "users object".Now my question is, what I need to modify in this code in order to have access to "Contacts Object" attributes. I believe I need to change the $strCategory, and $field variables, but I don't know the name I should use in Active Directory to Specify I want to get "contacts Object" attributes.

Pleaseee Help!!!