Aspnet_regsql.exe

Installing the Database using Aspnet_regsql.exe

ASP.NET includes a tool for installing the SQL Server database used by the SQL Server
providers, named Aspnet_regsql.exe. The Aspnet_regsql.exe tool is located in the
drive:\WINDOWS\Microsoft.NET\Framework\versionNumber folder on your Web server.
Aspnet_regsql.exe is used to both create the SQL Server database and add or remove options
from an existing database.
We can install using commandline argument and using wizard. These steps are shown in the following pics.

Acknowledgement : http://msdn2.microsoft.com/en-us/library/x28wfk74.aspx