Are you sure that there is no IE Maintenance Policy getting applied? Are the users and computer objects all in the same OUs? The Admin Template settings are the way to go, but the behavior you're explaining kind of sounds like there is something else conflicting with them. Also keep in mind that if you add a site to the "Trusted Sites" zone you should not have to also add it to the pop-up allow list. If you do indeed trust the site, I would go ahead and add it there instead of maintaining two different lists. From: gptalk-bounce@xxxxxxxxxxxxx [mailto:gptalk-bounce@xxxxxxxxxxxxx] On Behalf Of David Cliffe Sent: Wednesday, July 23, 2008 1:35 PM To: gptalk@xxxxxxxxxxxxx Subject: [gptalk] Sanity Check regarding Pop-Up Blocker GPO Hi, A client is shortly to distribute a new app (for IE) which generates pop-ups, so I was asked to implement GPO which specifically adds the new site to the pop-up blocker settings and ALLOW the pop-up. Forest and domain is Win2003 (FFL/DFL=2). All client machines are WinXP with SP2. Most clients are IE6 (some are IE7). I configured the following: "User Configuration\Administrative Templates\Windows Components\Internet Explorer\Pop-up allow list" (no strong reason to go with USER side config...I just thought no need to do this on COMPUTER side). I enabled that policy, added one domain to the list (*.site.org) and linked the GPO to a test OU with some users in it. RSOP/GPRESULT all show the GPO is applied successfully and also the following REG_SZ is confirmed present in registry: "HKCU\Software\Policies\Microsoft\Internet Explorer\New Windows\Allow" ( *.site.org is present both as the value and the data ) So I thought I was golden. Wrong. For three test users I encountered strange results when logging on as each user and looking in IE pop-up blocker settings (from the application itself). Note that the GPO was configured and applied via GPMC while logged on as User1 : User1 (me) runs IE7 and had two additional domains previously configured in pop-up blocker settings prior to existence of this GPO. They were simply configured via IE7 interface (not via GPO or other method). The new domain was added to the list. This is the behavior I was hoping for. Recall that this user (me) created the GPO on this machine. User2 runs IE6 and had one additional domain previously configured in pop-up blocker settings prior to existence of new GPO. The new domain was NOT added to the list. Instead, the two domains previously configured on User1's machine were added to the list! User3 runs IE7 and logged on to fresh built machine with NO pop-up blocker settings configured. The new domain was NOT added to the list. Instead, the two domains previously configured on User1's machine were added to the list! This test user took it upon himself to REMOVE ALL domains from the list (manually in the IE interface) and then exit/relaunch IE. This seemed to cause the one correct domain to get added to the list. When the wrong domains got added to the list on User2 and User3 machine, they were added as REG_BINARY here: HKCU\Software\Microsoft\Internet Explorer\New Windows\Allow (this is where they existed on the original User1 machine as well) I'm confused by this beharvior, or else I should not be mixing IE versions or else should clean my own settings out first when creating the GPO (although I didn't realize this could happen outside of IE Maint policies). Sorry for the long post...hope it makes sense. Just wondering if anyone else has experienced it. DaveC Confidentiality Warning: This message and any attachments are intended only for the use of the intended recipient(s), are confidential, and may be privileged. If you are not the intended recipient, you are hereby notified that any review, retransmission, conversion to hard copy, copying, circulation or other use of all or any portion of this message and any attachments is strictly prohibited. If you are not the intended recipient, please notify the sender immediately by return e-mail, and delete this message and any attachments from your system.