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MySQL 5.5 Reference Manual  /  ...  /  MySQL Installation Layout on Microsoft Windows

2.3.1 MySQL Installation Layout on Microsoft Windows

For MySQL 5.5 on Windows, the default installation directory is C:\Program Files\MySQL\MySQL Server 5.5 for installations performed with MySQL Installer or the MSI package. If you use the ZIP archive method to install MySQL, you may prefer to install in C:\mysql. However, the layout of the subdirectories remains similar (exceptions are indicated).

All of the files are located within this parent directory, using the structure shown in the following table.

Table 2.4 Default MySQL Installation Layout for Microsoft Windows

Directory Contents of Directory Notes
bin, scripts mysqld server, client and utility programs
%ALLUSERSPROFILE%\MySQL\MySQL Server 5.5\ Log files, databases (Windows XP, Windows Server 2003) The Windows system variable %ALLUSERSPROFILE% defaults to C:\Documents and Settings\All Users\Application Data.
%PROGRAMDATA%\MySQL\MySQL Server 5.5\ Log files, databases (Vista, Windows 7, Windows Server 2008, and newer) The Windows system variable %PROGRAMDATA% defaults to C:\ProgramData.
data Pristine templates
docs Release documentation With MySQL Installer, use the Modify operation to select this optional folder.
include Include (header) files
lib Libraries
share Miscellaneous support files, including error messages, character set files, sample configuration files, SQL for database installation
mysql-test, scripts, and sql-bench Debug binaries and test suite ZIP archive only.

The packages create and set up the data directory that the installed server will use, but as of MySQL 5.5.5, it also creates a pristine template data directory named data under the installation directory. This directory can be useful when the machine will be used to run multiple instances of MySQL. After an installation has been performed using an MSI package, the template data directory can be copied to set up additional MySQL instances. See Section 5.7, “Running Multiple MySQL Instances on One Machine”.