What does the utility aspnet_regsql.exe do?

The utility aspnet_regsql.exe was introduced in Microsoft .NET Framework 2.0. This utility creates a SQL Database to support forms' authentication in asp.net web applications to store site users' Membership related authentication information in an SQL Server database. Users accessing a web site which needs authentication by entering username and password in a web form presented to the user will have their information stored in a local copy of SQL Server against which they will be authenticated.

This utility is generally found in this folder:

C:\Windows\Microsoft.NET\Framework\v2.0.50727

The help file for this utility can be accessed using the command as shown :
 C:\Windows\Microsoft.NET\Framework\v2.0.50727>aspnet_regsql.exe /?
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Administrative utility to install and uninstall ASP.NET features on a SQL

server.

Copyright (C) Microsoft Corporation. All rights reserved

                             -- GENERAL OPTIONS --

-?                Display this help text.


-W                Wizard mode. (Default if no other parameters are specified.)

                          -- SQL CONNECTION OPTIONS --

-S        SQL Server instance (SQL Server 7.0 and above) to work with.

-U      SQL Server user name to authenticate with; requires -P
                  option.

-P      SQL Server password to authenticate with; requires -U option.

-E                Authenticate with current Windows credentials.

-C
                  Connection string. Instead of specifying a user name,
                  password, and server name, specify a SQL Server connection
                  string. The string must not contain a database name unless
                  otherwise specified.

-sqlexportonly
                  Generate the SQL script file for adding or removing the
                  specified features and do not carry out the actual operation.
                  Can be used with the following options: -A, -R, -ssadd, and
                  -ssremove.

                       -- APPLICATION SERVICES OPTIONS --

-A all|m|r|p|c|w  Add support for a feature. Multiple values can be specified
                  together. For example:

                      -A mp
                      -A m -A p

                  all: All features
                  m: Membership
                  r: Role manager
                  p: Profiles
                  c: Personalization
                  w: SQL Web event provider

-R all|m|r|p|c|w  Remove support for a feature. Multiple values can be
                  specified together. For example:

                      -R mp
                      -R m -R p

                  all : All features plus all common tables and stored
                  procedures shared by the features
                  m: Membership
                  r: Role manager
                  p: Profiles
                  c: Personalization
                  w: SQL Web event provider

-d      Database name for use with application services. If no
                  database name is specified, the default database "aspnetdb"
                  is used.

-Q                Quiet mode; do not display confirmation to remove a feature.

           -- SQL CACHE DEPENDENCY OPTIONS (FOR SQL 7.0 AND 2000) --

-d      Database name for use with SQL cache dependency in SQL 7.0
                  and SQL 2000. The database can optionally be specified using
                  the connection string with the -C option instead. (Required)

-ed               Enable a database for SQL cache dependency.

-dd               Disable a database for SQL cache dependency.

-et               Enable a table for SQL cache dependency. Requires -t option.

-dt               Disable a table for SQL cache dependency. Requires -t option.

-t
        Name of the table to enable or disable for SQL cache                   dependency. Requires -et or -dt option. -lt               List all tables enabled for SQL cache dependency.                       

                                               -- SESSION STATE OPTIONS --

-ssadd            Add support for SQLServer mode session state.
-ssremove         Remove support for SQLServer mode session state.
-sstype t|p|c     Type of session state support:                   t: temporary.
Session state data is stored in the "tempdb"    database. Stored procedures for managing session are          installed in the "ASPState" database. Data is not persisted   if you restart SQL. (Default)            
   p: persisted. Both session state data and the stored  procedures are stored in the "ASPState" database.              
c: custom. Both session state data and the stored procedures  are stored in a custom database. The database name must be  specified. -d      The name of the custom database to use if -sstype is "c".

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How to create the membership database in the local SQL Express Server?

 Run the following in the DOS screen:

C:\Windows\Microsoft.NET\Framework\v2.0.50727>aspnet_regsql -S Hodentek3\SQLExpress -E -A m

Here SQLExpress is installed in the computer Hodentek3