Hi, Group Policies applies to users or to computers depending on two criteria : 1. the location in the Active Director (OU, ...). : linking to a container. 2. Security filtering. And till today, I believed that computer parameters can only be applied to computers and that user parameters can only be applied to users : could you confirm ? (exception : loopback). Or the following situation is working : WSUS parameters (in computer configuration) linked to an OU containing only computers (this is ok...) but the security filtering is applied to a group of users : authenticated users... And not to a group of computers. I don't understant how it can work this way. Thanks for your help. Annick *********************** You can unsubscribe from gptalk by sending email to gptalk-request@xxxxxxxxxxxxx with 'unsubscribe' in the Subject field OR by logging into the freelists.org Web interface. Archives for the list are available at //www.freelists.org/archives/gptalk/ ************************