If you wish to use ASP.Net Membership for your project, you’ll need to setup related tables and database objects. These are set up using aspnet_reqsql utility. To run the utility, go to the .Net framework folder for the version that you are using, and run aspnet_regsql.exe. You can also use this utility to remove ASP.Net Membership objects from the database.
64 bit Windows example:
32 bit Windows example:
Once aspnet_regsql starts, select wether to install or remove ASP.Net Membership from the database, and follow the wizard.