Assign Access rights for Pages to Users in ASP.Net

Refer

http://weblogs.asp.net/gurusarkar/archive/2008/09/29/setting-authorization-rules-for-a-particular-page-or-folder-in-web-config.aspx

http://www.thecodingguys.net/tutorials/asp/webpages-membership-restricting-access-based-on-roles