Hi Tim

Are you wanting to have them automatically logged in using their active directory credentials? At this time there's a bug that's preventing the user account on the child sites from working properly that I haven't figured out a solution for. However in my testing if a user logs in manually using their AD credentials it will allow them to log onto any of the portals.

A short synopsis of the problem. With the automatic login enabled (the <add name="Authentication".../> under <httpModules> uncommented) the process wants to redirect to the parent portal. Under ideal circumstances I'd be able to take the requesting url and capture it for future redirection back to the original page request. The problem is that the procedure is called three times during the process with a different url everytime so capturing the correct URL is difficult (though as I'm typing this I've gotten an idea of what might work).

In any case a record is never added to the UserPortals table for that user/portal combination for that user. It's been a month or so since I last looked at this but, if memory serves me properly, what happens is that the user is actually logged into the child portal but their display name never appears and the Login button doesn't get switched to Logout so it doesn't look like they're logged in. Their user account also never shows up on the User Accounts page. When they log in manually this section of code I mention above doesn't get called and the user is added to the database just as they would if they registered for the site under the DNN login provider.

I hope that helped clear up your questions. If not then let me know. If you weren't planning on user Active Directory and just the regular DNN provider then you shouldn't have a problem with a user registering for a portal using the same information but they'd have to do it for each portal they went to (Global and Country).