Hi there, I need someone help me out of database problem. I have looked over the net and cant find any clues to do it.

I'm using 3 Classified Starter Kits ASP.NET to create my website. I have 1 domain and 2 subdomains on my host. Basically, I want to share member database between those 3 websites. It means once a user register or login (single register/login) on 1 website, they don't have to do that again on others. I'm not sure if it's possible to do that. however, if it's not then could you give me other solutions to make it works.

I'm very appreciate your help.