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 2.3.12 Starting MySQL as a Windows Service
 ------------------------------------------
 
 On the NT family (Windows NT, 2000, XP, 2003), the recommended way to
 run MySQL is to install it as a Windows service. When MySQL is
 installed as a service, Windows starts and stops the MySQL server
 automatically when Windows starts and stops.  A server installed as a
 service can also be controlled from the command line using `NET'
 commands, or with the graphical `Services' utility.
 
 The `Services' utility (the Windows `Service Control Manager') can be
 found in the Windows `Control Panel' (under `Administrative Tools' on
 Windows 2000, XP, and Server 2003). It is advisable to close the
 `Services' utility while performing server installation or removal
 operations from this command line.  This prevents some odd errors.
 
 To get MySQL to work with TCP/IP on Windows NT 4, you must install
 service pack 3 (or newer).
 
 Before installing MySQL as a Windows service, you should first stop the
 current server if it is running by using the following command:
 
      C:\> C:\mysql\bin\mysqladmin -u root shutdown
 
 This invokes the MySQL administrative utility `mysqladmin' to connect
 to the server and tell it to shut down. The command connects as `root',
 which is the default administrative account in the MySQL grant system.
 Note that users in the MySQL grant system are wholly independent from
 any login users under Windows.
 
 Install the server as a service:
 
      C:\> mysqld --install
 
 If you have problems installing `mysqld' as a service using just the
 server name, try installing it using its full pathname:
 
      C:\> C:\mysql\bin\mysqld --install
 
 As of MySQL 4.0.2, you can specify a specific service name after the
 `--install' option.  As of MySQL 4.0.3, you can in addition specify a
 `--defaults-file' option after the service name to indicate where the
 server should obtain options when it starts. The rules that determine
 the service name and option files the server uses are as follows:
 
    * If you specify no service name or a name of `MySQL', the server
      uses the default service name of `MySQL' and the reads options from
      the `[mysqld]' group in the standard option files.
 
    * If you specify a service name other than `MySQL' after the
      `--install' option, the server reads options from the group that
      has the same name as the service.  The server reads options from
      the standard option files.
 
      As of MySQL 4.0.17, the server also reads options from the
      `[mysqld]' group from the standard option files.  This allows you
      to use the `[mysqld]' group for options that should be used by all
      MySQL services, and an option group named after each service for
      use by the server installed with that service name.
 
    * If you specify a `--defaults-file' option after the service name,
      the server ignores the standard option files and reads options
      only from the `[mysqld]' group of the named file.
 
 
 * Prior to MySQL 4.0.17, a server installed as a Windows service
 has problems starting if its pathname or the service name contains
 spaces. For this reason, with older versions, avoid installing MySQL in
 a directory such as `C:\Program Files' or using a service name
 containing spaces.
 
 As a more complex example, consider the following command:
 
      C:\> C:\mysql\bin\mysqld --install MySQL --defaults-file=C:\my-opts.cnf
 
 Here, the default service name (`MySQL') is given after the `--install'
 option. If no `--defaults-file' option had been given, this command
 would have the effect of causing the server to read the `[mysqld]'
 group from the standard option files.  However, because the
 `--defaults-file' option is present, the server reads options from the
 `[mysqld]' option group, but only from the named file.
 
 You can also specify options as "`Start parameters'" in the Windows
 `Services' utility before you start the MySQL service.
 
 Once a MySQL server is installed as a service, Windows will start the
 service automatically whenever Windows starts.  The service also can be
 started immediately from the `Services' utility, or by using the
 command `NET START MySQL'.  The `NET' command is not case sensitive.
 
 When run as a service, `mysqld' has no access to a console window, so
 no messages can be seen there.  If `mysqld' doesn't start, check the
 error log to see whether the server wrote any messages there to
 indicate the cause of the problem.  The error log is located in the
 `C:\mysql\data' directory. It is the file with a suffix of `.err'.
 
 When `mysqld' is running as a service, it can be stopped by using the
 `Services' utility, the command `NET STOP MySQL', or the command
 `mysqladmin shutdown'. If the service is running when Windows shuts
 down, Windows will stop the server automatically.
 
 From MySQL 3.23.44 on, you have the choice of installing the server as
 a `Manual' service if you don't wish the service to be started
 automatically during the boot process. To do this, use the
 `--install-manual' option rather than the `--install' option:
 
      C:\> C:\mysql\bin\mysqld --install-manual
 
 To remove a server that is installed as a service, first stop it if it
 is running. Then use the `--remove' option to remove it:
 
      C:\> C:\mysql\bin\mysqld --remove
 
 For MySQL versions older than 3.23.49, one problem with automatic MySQL
 service shutdown is that Windows waited only for a few seconds for the
 shutdown to complete, then killed the database server process if the
 time limit was exceeded. This had the potential to cause problems.
 (For example, the `InnoDB' storage engine had to perform crash recovery
 at the next startup.) Starting from MySQL 3.23.49, Windows waits longer
 for the MySQL server shutdown to complete. If you notice this still is
 not enough for your installation, it is safest not to run the MySQL
 server as a service. Instead, start it from the command-line prompt,
 and stop it with `mysqladmin shutdown'.
 
 This change to tell Windows to wait longer when stopping the MySQL
 server works for Windows 2000 and XP. It does not work for Windows NT,
 where Windows waits only 20 seconds for a service to shut down, and
 after that kills the service process. You can increase this default by
 opening the Registry Editor `\winnt\system32\regedt32.exe' and editing
 the value of `WaitToKillServiceTimeout' at
 `HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control' in the Registry
 tree. Specify the new larger value in milliseconds.  For example, the
 value 120000 tells Windows NT to wait up to 120 seconds.
 
 If you don't want to start `mysqld' as a service, you can start it from
 the command line.  For instructions, see  Windows start command
 line.
 
 Please see  Windows troubleshooting if you encounter difficulties
 during installation.
 
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